[Nagios-users] Mutually exclusive contacts?

[Israel Brewster]

I suspect the answer is no, but in nagios 3, is there any way to set up mutually exclusive contact? As in, I have a host template set up with a number of contacts. On specific hosts that use this template, I want to replace one contact (normal me) with a different contact (urgent me). The other contacts for the host remain the same, so I don't want to just override the contacts directive for the host. I think I can do something like contacts +UrgentMe, !NormalMe, but I'm not even sure about that - I want to say there was an issue with doing negative contacts (although that might have been something else- I'll try it and see). Be that as it may, it would be really convenient if I could set something in the contacts to say "Urgent me overrides Normal me" Is this possible? Thanks. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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[Nagios-users] [OT]Network speed test

[Israel Brewster]

This isn't a nagios question so much as a general network diagnostic question, but since nagios is all about network monitoring and diagnostics, I figured it was likely someone here would know the answer. I am looking for a tool for testing network speeds on our "local" network, similar to internet speed sites. The difference being that I need something I can install somewhere on our local network so we can get site-to-site results between our main hub and our outstations. The idea being to test the actual speed we are getting over our private links. This wouldn't necessarily need to integrate with Nagios however, as it would just be for periodic spot checks - thus the OT label. Thanks. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] [OT]Network speed test

[Israel Brewster]

On Feb 12, 2010, at 10:03 AM, Matt Simmons wrote:


I think you're looking for this: http://www.speedtest.net/mini.php


Exactly what I was looking for. Thanks.



Feel free to direct general non-nagios sysadmin related questions to
http://www.serverfault.com as well. Lots of good people on that site.


Good tip - I'll definitely look into it. Thanks again!



--Matt


On Fri, Feb 12, 2010 at 1:20 PM, Israel Brewster
 wrote:

This isn't a nagios question so much as a general network diagnostic
question, but since nagios is all about network monitoring and  
diagnostics,
I figured it was likely someone here would know the answer. I am  
looking for

a tool for testing network speeds on our "local" network, similar to
internet speed sites. The difference being that I need something I  
can
install somewhere on our local network so we can get site-to-site  
results
between our main hub and our outstations. The idea being to test  
the actual
speed we are getting over our private links. This wouldn't  
necessarily need
to integrate with Nagios however, as it would just be for periodic  
spot

checks - thus the OT label. Thanks.
-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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[Nagios-users] Check ActiveSync

[Israel Brewster]

Is there a plugin that allows me to check if I can make an ActiveSync connection to an exchange server? I've found plugins that use, for example, check_nt to check various parameters of the exchange server, and of course I can make sure that IMAP and SMTP connections are working, but I haven't found one to check if I can actually make an activesync/exchange connection., i.e. if my users can actually connect. Thanks.
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Re: [Nagios-users] Check ActiveSync

[Israel Brewster]

On Aug 3, 2010, at 6:14 AM, Mike A. Leonetti wrote:

(2010年07月29日 12:28), Israel Brewster wrote:
Is there a plugin that allows me to check if I can
  make an ActiveSync connection to an exchange server? I've found
  plugins that use, for example, check_nt to check various
  parameters of the exchange server, and of course I can make sure
  that IMAP and SMTP connections are working, but I haven't found
  one to check if I can actually make an activesync/exchange
  connection., i.e. if my users can actually connect. Thanks.
  

  
  

  ---


  Israel
  Brewster


  Computer
  Support Technician II


  Era
  Alaska


  5245
  Airport Industrial Rd


  Fairbanks,
  AK 99709


  (907)
  450-7250 x7293


  ---
  


  

  
  

You can always attempt some sort of check on
http://yourwebaddress/Microsoft-Server-ActiveSync.  ActiveSync is
wrapped in HTTP and the first thing you should get is a web login
when you go to that site.  You can start there.Ah, thank you. I thought there was something like that, but I couldn't find it. I think simply using a http check to that address, and making sure it lets me log in should do the trick. Of course, I get a 501 error after logging in, but that's fine- at least I know it's responding and accepting credentials. Thanks.
  

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Re: [Nagios-users] snmp monitoring of RICOH / DEVELOP

[Israel Brewster]

Well, I threw together a (very) quick shell script for this purpose  
that I am using here. Basically just checks the status SNMP entry of  
our ricohs, and returns a status code depending on that as well as  
whatever status text SNMP gives. It is NOT polished, and will probably  
break if you look at it wrong, but it works for us. If anyone wants  
it, let me know.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


On Mar 5, 2009, at 6:28 AM, Kevin Keane wrote:

> I'm actually writing a plugin for monitoring printers. Currently, I  
> have
> only tested it with HP printers, but at least in theory it should work
> with Ricoh and others as well, since it uses standard SNMP. If you  
> want
> to try it out, download http://sourceforge.net/projects/tntnagiosplugin/
> I would actually appreciate feedback about what printers it does or  
> does
> not work with.
>
> One catch: the plugin only runs on Windows, so it is not directly  
> useful
> for the majority of nagios users (I wrote it primarily for my own
> needs). Also, the only thing it currently monitors is toner level.
>
> Doug Veldhuisen wrote:
>>
>> I tried once to get RICOH Savin Printers checked via Nagios. Searched
>> high and low for something and never did find anything that was
>> already developed.
>>
>> Figured I was going to have to write my own stuff.
>>
>> Now I’m trying the same thing with Toshiba printers, nothing there  
>> either.
>>
>> If someone has a way to utilize “Check_hpjd” for non HP printers,  
>> lets
>> pool the knowledge on this subject.
>>
>> Doug
>>
>> *From:* Trnka Tomas [mailto:tomas.tr...@podravka.cz]
>> *Sent:* Thursday, March 05, 2009 7:38 AM
>> *To:* nagios-users@lists.sourceforge.net
>> *Subject:* [Nagios-users] snmp monitoring of RICOH / DEVELOP
>>
>> Anyone have experience with snmp monitoring of RICOH / DEVELOP
>> printers ? i like to have results something like from Check_hpjd ….
>> Thanks in advance for your notes
>>
>
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Re: [Nagios-users] Host checks instead of service checks

[Israel Brewster]

Using check_dummy with a service check titled "No Services" is exactly  
how we are doing this here. We have a number of hosts which we are  
really only interested in if the machine is running or not - so  
check_icmp is specified as the host check, and "No services" as the  
only service check. You are right, however, in that all these "No  
Services" show up in the service status list. If you don't want that,  
about the only way I can think of is to not associate any services  
with the host, and simply ignore the warnings you get about that when  
running nagios -v. This does cause some display issues, however (hosts  
without services tend to not show up in various screens) - thus the  
reason I opted to add the "No services" service.

-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



On Mar 16, 2009, at 9:34 AM, Deborah Martin wrote:


Folks,

Whilst using check_dummy as a service check does resolve the pre- 
flight warnings, it's not the solution I think I'm looking for.


The total number of service checks now includes the dummy checks  
which i've chosen to always exit as UP so that it doesn't show up as  
a service problem - which to me
doesn't sound like the right way to do this. I want all service  
checks to be useful service checks rather than have checks which  
would need to be ignored as they don't return
anything useful as with check_dummy - I wouldn't ever use that check  
in any Nagios SLA reporting.


What I really want to do is the following :

Hosts -->> ssh check -->> When "CRITICAL" alert under "Host  
problems" only.


The docs show a distinct difference for behaviour between Nagios  
2.0b4 and Nagios 3.0.6.


From Nagios 2.0b4, under Host Definitions:-
check_command:	This directive is used to specify the short name of  
the command that should be used to check if the host is up or down.  
Typically, this command would try and ping the host to see if it is  
"alive". The command must return a status of OK (0) or Nagios will  
assume the host is down. If you leave this argument blank, the host  
will not be checked - Nagios will always assume the host is up. This  
is useful if you are monitoring printers or other devices that are  
frequently turned off. The maximum amount of time that the  
notification command can run is controlled by the host_check_timeout  
option.



From Nagios 3.0.6
check_command:	This directive is used to specify the short name of  
the command that should be used to check if the host is up or down.  
Typically, this command would try and ping the host to see if it is  
"alive". The command must return a status of OK (0) or Nagios will  
assume the host is down. If you leave this argument blank, the host  
will not be actively checked. Thus, Nagios will likely always assume  
the host is up (it may show up as being in a "PENDING" state in the  
web interface). This is useful if you are monitoring printers or  
other devices that are frequently turned off. The maximum amount of  
time that the notification command can run is controlled by the  
host_check_timeout option.


The difference is highlighted in RED. So on changing the "ssh  
check"  from a service to a host definition (to prevent PENDING on  
the hosts), the pre-flight warnings now complain there are no  
services associated with the hosts. On big systems here (100 nodes+)  
this makes the pre-flight output really unreadable and not really  
accurate as surely we should be able to choose whether something is  
a host check or service check but not have to define BOTH!


Ultimately, I just want to filter SSH check problems to appear under  
"Host problems" rather than under "Service problems" so users can  
easily spot other service problem issues and not have to trawl  
through 100's of lines of output in the web interface. Believe me,  
Nagios web interface users can be a fickle bunch!


A switch to tell Nagios to not complain about this would be really  
useful unless anyone thinks of a good reason why this would be a bad  
idea.


any help / pointers would be appreciated, even if it's to tell me  
politely how stupid i'm being - I can take it!


regards,
deborah

From: Deborah Martin [mailto:deborah.mar...@kognitio.com]
Sent: 16 March 2009 15:34
To: 'Richard Quintin'
Cc: nagios-users@lists.sourceforge.net
Subject: Re: [Nagios-users] Host checks instead of service checks

Thanks Richard. I'll give that a try.

regards,
deborah


-Original Message-
From: Richard Quintin [mailto:rich+nag...@quintinz.com]
Sent: 16 March 2009 15:26
To: Deborah Martin
Cc: nagios-users@lists.sourceforge.net
Subject: Re:

[Nagios-users] Children "unreachable" on soft down?

[Israel Brewster]

Does nagios (3.0.3) mark a child host as unreachable when its parent  
enters a soft down state? I am finding myself getting repeated down  
messages for a host (which is, in fact, down), even though I have  
notifications set to only send a single message. Looking at the logs,  
it would appear that what is happening is that the host is flipping  
between "down" (which notifies me) and "unreachable" (which does not).  
The parent host, however, never enters a hard down state. Looking at  
the logs, what I see is that one ICMP check fails, throwing the host  
into a soft down state, but the next one works just fine, bringing it  
back to an up state.

The logic works fine for the parent host- since it never hits a hard  
down state, it doesn't alert, and everyone is happy. But apparently  
with the child host every time this happens, it switches from critical  
to unreachable and back again, triggering a notification. Is there any  
way to keep this from happening? Thanks.

-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---




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Re: [Nagios-users] Children "unreachable" on soft down?

[Israel Brewster]

On Mar 31, 2009, at 1:09 AM, Andreas Ericsson wrote:

> Israel Brewster wrote:
>> Does nagios (3.0.3) mark a child host as unreachable when its  
>> parent  enters a soft down state? I am finding myself getting  
>> repeated down  messages for a host (which is, in fact, down), even  
>> though I have  notifications set to only send a single message.  
>> Looking at the logs,  it would appear that what is happening is  
>> that the host is flipping  between "down" (which notifies me) and  
>> "unreachable" (which does not).  The parent host, however, never  
>> enters a hard down state. Looking at  the logs, what I see is that  
>> one ICMP check fails, throwing the host  into a soft down state,  
>> but the next one works just fine, bringing it  back to an up state.
>> The logic works fine for the parent host- since it never hits a  
>> hard  down state, it doesn't alert, and everyone is happy. But  
>> apparently  with the child host every time this happens, it  
>> switches from critical  to unreachable and back again, triggering a  
>> notification. Is there any  way to keep this from happening? Thanks.
>
> Doesn't flapping detection do what you want? You'd get a few
> notifications, but they'd stop after the 3rd flip or something, I  
> think.

Flapping detection helps, but doesn't solve. For one thing, as you  
mentioned, you still get at least a couple of notifications before it  
kicks in. For another thing, this happens with a frequency of  
something like once an hour or so (not consistently), so the host will  
flip from down to unreachable and back again, triggering an e-mail,  
perhaps do it a second time, and then it will sit in the correct  
"down" state for the next 50 checks or so (thus canceling any flapping  
detection) before repeating the process. It's not like I'm getting  
messages every five minutes or anything, it's just that I'm getting  
repeated down messages every hour or two for hosts that have been down  
and haven't actually changed state.

I could, of course, schedule down time, except that I want to be  
notified if/when the people in the remote station get their act  
together and get the machine(s) in question back online. Also that is  
only partially effective for machines that have been sent in for  
repair, because I don't really know when the scheduled down time will  
be over. They are down, I know they are down, I just don't want to be  
told about it every few hours :-)

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
>
> -- 
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> Tel: +46 8-230225  Fax: +46 8-230231
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Re: [Nagios-users] Children "unreachable" on soft down?

[Israel Brewster]

So does anyone have any ideas as to how I can resolve this situation?  
It continues to be an annoyance. Thanks.

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



On Mar 31, 2009, at 8:17 AM, Israel Brewster wrote:

> On Mar 31, 2009, at 1:09 AM, Andreas Ericsson wrote:
>
>> Israel Brewster wrote:
>>> Does nagios (3.0.3) mark a child host as unreachable when its
>>> parent  enters a soft down state? I am finding myself getting
>>> repeated down  messages for a host (which is, in fact, down), even
>>> though I have  notifications set to only send a single message.
>>> Looking at the logs,  it would appear that what is happening is
>>> that the host is flipping  between "down" (which notifies me) and
>>> "unreachable" (which does not).  The parent host, however, never
>>> enters a hard down state. Looking at  the logs, what I see is that
>>> one ICMP check fails, throwing the host  into a soft down state,
>>> but the next one works just fine, bringing it  back to an up state.
>>> The logic works fine for the parent host- since it never hits a
>>> hard  down state, it doesn't alert, and everyone is happy. But
>>> apparently  with the child host every time this happens, it
>>> switches from critical  to unreachable and back again, triggering a
>>> notification. Is there any  way to keep this from happening? Thanks.
>>
>> Doesn't flapping detection do what you want? You'd get a few
>> notifications, but they'd stop after the 3rd flip or something, I
>> think.
>
> Flapping detection helps, but doesn't solve. For one thing, as you
> mentioned, you still get at least a couple of notifications before it
> kicks in. For another thing, this happens with a frequency of
> something like once an hour or so (not consistently), so the host will
> flip from down to unreachable and back again, triggering an e-mail,
> perhaps do it a second time, and then it will sit in the correct
> "down" state for the next 50 checks or so (thus canceling any flapping
> detection) before repeating the process. It's not like I'm getting
> messages every five minutes or anything, it's just that I'm getting
> repeated down messages every hour or two for hosts that have been down
> and haven't actually changed state.
>
> I could, of course, schedule down time, except that I want to be
> notified if/when the people in the remote station get their act
> together and get the machine(s) in question back online. Also that is
> only partially effective for machines that have been sent in for
> repair, because I don't really know when the scheduled down time will
> be over. They are down, I know they are down, I just don't want to be
> told about it every few hours :-)
>
> ---
> Israel Brewster
> Computer Support Technician II
> Frontier Flying Service Inc.
> 5245 Airport Industrial Rd
> Fairbanks, AK 99709
> (907) 450-7250 x293
> ---
>
>>
>>
>> -- 
>> Andreas Ericsson   andreas.erics...@op5.se
>> OP5 AB www.op5.se
>> Tel: +46 8-230225  Fax: +46 8-230231
>>
>> Considering the successes of the wars on alcohol, poverty, drugs and
>> terror, I think we should give some serious thought to declaring war
>> on peace.
>
>
> --
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Re: [Nagios-users] Children "unreachable" on soft down?

[Israel Brewster]

On Apr 6, 2009, at 9:03 AM, Giorgio Zarrelli wrote:

> Hi,
>
> I've not quite clear what happens to you,

Thanks for the response. For clarification, the exact sequence of  
events is as follows:

1) The link between the nagios box and one of our routers, which we  
will refer to as the parent host glitches for 30 seconds or so. Due to  
the nature of the link (satellite connection) this is semi-expected,  
and happens a couple of times a day.

2) Nagios catches this glitch in one of it's regularly scheduled host  
checks, and puts the parent host into a soft down state. Again, normal  
and expected - even good.

3) At the same time, Nagios puts the children of the parent host into  
an "unreachable" state. Makes sense, at least, but leads to the issue

4) The parent host is now in recheck mode (as it is only in a soft  
down state and has three rechecks set), so it checks again a minute  
later. This check succeeds, as the outage was transitory. The parent  
host is put back into an "UP" state. As it never was in a hard "down"  
state, no notification is sent. This is good.

5) since the parent is now up, the child host now is changed to a  
(soft I think) "down" state.

6) check continue on a normal schedule. As the link does not glitch  
again for several hours, parent remains up and child remains  
(correctly) down. Three checks later, child enters a hard "down" state  
(since it was unreachable and only just switched back to down). Down  
notification is sent for child.

7) Everything remains good for the next several hours until the link  
glitches again. Repeat from step one.

The notification in step 6 is the problem here - the child host was  
down before the glitch, the child host is still down after. But  
because the child host was temporarily put in an unreachable state, we  
get notified again that it is down, resulting in a string of "DOWN"  
messages with no up or real change in status.

> but one thing I have in mind is try
>
> soft_state_dependencies=0
>
> Besides that, the problems seems to be in the roots of the check.  
> It's not
> healty to have a ping check failing every 2 strikes. Try to change  
> the host
> alive check, using a ssh check instead.

The check is not failing every 2 strikes. It's failing once, briefly,  
every few hours - just barely long enough to make one check fail and  
throw the parent host into a soft down state. The first recheck (one  
minute later) works fine, bringing the parent back to an up state. The  
next several hundred or more checks also work fine (as the problem was  
transitory and brief). For this reason, changing the check wouldn't  
help - for the duration of that single check, the host really is down  
(or more precisely, unreachable, as it is a link issue), and any check  
I used would say so.

> Another approach, not so useful, would be to increase the timeout  
> for the ping
> (-W) so it will have less chances to fail.

except that it's not a timeout issue. It is a very real, albeit brief  
(around 30 seconds or so), outage. Not long enough or frequent enough  
to really impact productivity or anything, but long enough for nagios  
to catch it (for a single check).

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
> Giorgio
>
> Israel Brewster (isr...@frontierflying.com) scritto:
>>
>> So does anyone have any ideas as to how I can resolve this situation?
>> It continues to be an annoyance. Thanks.
>>
>> ---
>> Israel Brewster
>> Computer Support Technician II
>> Frontier Flying Service Inc.
>> 5245 Airport Industrial Rd
>> Fairbanks, AK 99709
>> (907) 450-7250 x293
>> ---
>>
>>
>>
>> On Mar 31, 2009, at 8:17 AM, Israel Brewster wrote:
>>
>>> On Mar 31, 2009, at 1:09 AM, Andreas Ericsson wrote:
>>>
>>>> Israel Brewster wrote:
>>>>> Does nagios (3.0.3) mark a child host as unreachable when its
>>>>> parent  enters a soft down state? I am finding myself getting
>>>>> repeated down  messages for a host (which is, in fact, down), even
>>>>> though I have  notifications set to only send a single message.
>>>>> Looking at the logs,  it would appear that what is happening is
>>>>> that the host is flipping  between "down" (which notifies me) and
>>>>> "unreachable" (which does not).  The parent host, however, never
>>>>> enters a hard down state. Looking at  

Re: [Nagios-users] Children "unreachable" on soft down?

[Israel Brewster]

So is this just something I'll have to live with? I don't seem to be  
getting much feedback on the subject. :(
-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



On Apr 6, 2009, at 10:55 AM, Israel Brewster wrote:

> On Apr 6, 2009, at 9:03 AM, Giorgio Zarrelli wrote:
>
>> Hi,
>>
>> I've not quite clear what happens to you,
>
> Thanks for the response. For clarification, the exact sequence of
> events is as follows:
>
> 1) The link between the nagios box and one of our routers, which we
> will refer to as the parent host glitches for 30 seconds or so. Due to
> the nature of the link (satellite connection) this is semi-expected,
> and happens a couple of times a day.
>
> 2) Nagios catches this glitch in one of it's regularly scheduled host
> checks, and puts the parent host into a soft down state. Again, normal
> and expected - even good.
>
> 3) At the same time, Nagios puts the children of the parent host into
> an "unreachable" state. Makes sense, at least, but leads to the issue
>
> 4) The parent host is now in recheck mode (as it is only in a soft
> down state and has three rechecks set), so it checks again a minute
> later. This check succeeds, as the outage was transitory. The parent
> host is put back into an "UP" state. As it never was in a hard "down"
> state, no notification is sent. This is good.
>
> 5) since the parent is now up, the child host now is changed to a
> (soft I think) "down" state.
>
> 6) check continue on a normal schedule. As the link does not glitch
> again for several hours, parent remains up and child remains
> (correctly) down. Three checks later, child enters a hard "down" state
> (since it was unreachable and only just switched back to down). Down
> notification is sent for child.
>
> 7) Everything remains good for the next several hours until the link
> glitches again. Repeat from step one.
>
> The notification in step 6 is the problem here - the child host was
> down before the glitch, the child host is still down after. But
> because the child host was temporarily put in an unreachable state, we
> get notified again that it is down, resulting in a string of "DOWN"
> messages with no up or real change in status.
>
>> but one thing I have in mind is try
>>
>> soft_state_dependencies=0
>>
>> Besides that, the problems seems to be in the roots of the check.
>> It's not
>> healty to have a ping check failing every 2 strikes. Try to change
>> the host
>> alive check, using a ssh check instead.
>
> The check is not failing every 2 strikes. It's failing once, briefly,
> every few hours - just barely long enough to make one check fail and
> throw the parent host into a soft down state. The first recheck (one
> minute later) works fine, bringing the parent back to an up state. The
> next several hundred or more checks also work fine (as the problem was
> transitory and brief). For this reason, changing the check wouldn't
> help - for the duration of that single check, the host really is down
> (or more precisely, unreachable, as it is a link issue), and any check
> I used would say so.
>
>> Another approach, not so useful, would be to increase the timeout
>> for the ping
>> (-W) so it will have less chances to fail.
>
> except that it's not a timeout issue. It is a very real, albeit brief
> (around 30 seconds or so), outage. Not long enough or frequent enough
> to really impact productivity or anything, but long enough for nagios
> to catch it (for a single check).
>
> ---
> Israel Brewster
> Computer Support Technician II
> Frontier Flying Service Inc.
> 5245 Airport Industrial Rd
> Fairbanks, AK 99709
> (907) 450-7250 x293
> ---
>>
>> Giorgio
>>
>> Israel Brewster (isr...@frontierflying.com) scritto:
>>>
>>> So does anyone have any ideas as to how I can resolve this  
>>> situation?
>>> It continues to be an annoyance. Thanks.
>>>
>>> ---
>>> Israel Brewster
>>> Computer Support Technician II
>>> Frontier Flying Service Inc.
>>> 5245 Airport Industrial Rd
>>> Fairbanks, AK 99709
>>> (907) 450-7250 x293
>>> ---
>>>
>>>
>>>
>>> On Mar 31, 2009, at 8:17 AM, Israel

Re: [Nagios-users] Children "unreachable" on soft down?

[Israel Brewster]

On Apr 8, 2009, at 9:28 AM, Marc Powell wrote:

>
> On Apr 8, 2009, at 11:44 AM, Israel Brewster wrote:
>
>> So is this just something I'll have to live with? I don't seem to be
>> getting much feedback on the subject. :(
>
> Well, my response would be to fix the problem that's causing the
> outages in the first place or adjust the way you're monitoring the
> parents so that the plugin used recognizes when this temporary event
> is occurring.

Ok, fair enough. There is nothing we can do about the outages (as I  
explained in one of my e-mail, they are an artifact of the connection  
type), so that leaves us with adjusting the monitoring. Now I thought  
that the recheck options were there exactly for this reason: to catch  
brief outages and not alert. And for the parent host that seems to be  
the case, but apparently that logic doesn't carry on to the child  
hosts. As such, somehow things would need to be adjusted so it never  
even sees the outages, even enough to go into a soft down state.  
Anyone have any suggestions for how I can accomplish this? Adjusting  
the timeout or using, say, an ssh check rather than icmp won't do it -  
the packets are still lost, and the ssh check would still timeout..  
Perhaps if I sent more pings at longer intervals (so that if it  
doesn't get a response the single check retries at 15 second intervals  
or so before returning a response), but then the check would start  
taking several seconds or more to complete, and that wouldn't be a  
good thing. Assuming nagios even allowed a check to run that long -  
doesn't it have a mechanism to kill a check that doesn't return in a  
given time frame? I'm a little stumped here how I can adjust things.

> What you're asking for is that nagios track that the
> child went from down->unreachable->down without an intermediate OK
> state and suppress notifications in that case. That would appear to be
> a code change and would be better discussed on nagios-devel but I
> would encourage the check plugin approach first.

Ok. I know there is code in there that know who it sent down messages  
to and doesn't send up messages to people that didn't get a down  
(primarily dealing with escalations) so I was hoping that maybe there  
would be something similar for this, i.e. seeing that the last  
notification sent was a down notification, and as such there is no  
need to send another. But if not, so be it. Thanks for the response!

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
> --
> Marc
>
>
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[Nagios-users] [OT] Network help?

[Israel Brewster]

I apologize for the off-topic post, but I figure the people here tend  
to be involved with networking, so perhaps someone can direct me to  
the right place to post a question about some networking problems I am  
having. Any suggestions?

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---




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Re: [Nagios-users] [OT] Network help?

[Israel Brewster]

On May 8, 2009, at 1:40 PM, Jim Avery wrote:

> 2009/5/8 Israel Brewster :
>> I apologize for the off-topic post, but I figure the people here tend
>> to be involved with networking, so perhaps someone can direct me to
>> the right place to post a question about some networking problems I  
>> am
>> having. Any suggestions?
>
> If it's social-networking problems, I recommend maybe facebook.com!
>
> Seriously though, it depends.  If it's to do with Linux you could seek
> out your local LUG, but why not just say what the problem is here, you
> never know ... someone might find a solution to your problem AND
> explain how Nagios can help you to check how effective their answer to
> it was!

Nope, not social, although if I don't get it fixed soon (or find  
another solution) it might become a social problem :-) I didn't post  
it here because I thought some might get annoyed with me cluttering  
the list with non-nagios problems, but here goes.

Thanks to a recent company acquisition made by my company (Frontier  
Flying), we are now dealing with two separate networks (they will  
eventually be combined, but that's a ways off still). The company we  
bought (Era aviation) uses a piece of software called Sabre for their  
flight reservations, which contacts a central server to which their  
network has a direct connection. The Sabre server itself is on a third  
network, but there are a couple of routers that link the two (Sabre  
and Era) across a private network, so asside from a couple of routing  
and NAT statements they are effectively on the same network.

In order to be able to run Sabre on our network, we established a VPN  
tunnel between our network and Era's. As far as I can tell, the VPN is  
functioning. I can ping computers on the Era network, including the  
Sabre server, and can access and control various computers on the Era  
network. For initial testing purposes we installed the sabre software  
(windows only) inside a parallels installation on one of our Mac  
laptops. This worked perfectly. So far so good. Until we tried  
installing the software on one of our Windows desktops. Then the  
problems started. The Sabre software would make the initial connection  
and log in the user, but when it tried to download the initial info it  
needs, it just timed out. Every time. Meanwhile, the laptop, which was  
connected through the same dumb switch, continued to work perfectly.  
Every time. We took the Windows machine off our network and put it on  
Era's (different location, obviously) and it started working. Put it  
back on ours, timeout.

Since then we have tried installing Sabre on a number of different  
computers on our network. A second Mac laptop running parallels works  
fine, while a mac desktop with an identical install of parallels  
doesn't. We have managed get one Windows machine running the software  
on our network, while a stack of four windows machines that Era sent  
us which had been working on their network just fine don't work.

On one hand it seems impossible that it could be an issue with the  
network, because you would expect that to affect all computers  
equally, not the hit-and miss (but mostly miss) scenario that we are  
facing. On the other hand, it can't be a problem with the individual  
computer, because the same computer with the exact same configuration  
(including network settings - DHCP) works fine on the Era network, but  
stops working when moved to ours. We thought maybe it was a DNS  
problem (since obviously DHCP on our network would give different DNS  
servers than DHCP on Era's network), so we tried putting the Era DNS  
servers in statically, but while it worked as far as DNS went (we  
still got name resolution) that didn't help with Sabre.

We are going bald here tearing our hair out trying to figure out what  
could be causing this issue. Sabre technical support is no help - they  
just say it's our problem. Management is coming down on us pretty hard  
to get something working here, so any help anyone can provide would be  
GREATLY appreciated :-). Let me know if I left out any relevant  
details or testing we performed!

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


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Re: [Nagios-users] Generating availability report in Nagios 3.0.6

[Israel Brewster]

On May 15, 2009, at 4:46 AM, Paul Corcoran wrote:

> Hi,
>
> I've recently completed a distributed installation of Nagios  
> consisting of a master server acting as the web front end for Nagios  
> and 2 slave servers that do all the service checking.
>
> Currently we are monitoring approx 500 hosts and perform approx 3300  
> service checks.
>
> Nagios performs daily rotation of the logs and they are approx 250MB  
> in size for each 24 hours period.
>
> I am having some difficulty running availability reports at the  
> moment. I am able to generate reports for the current day but if I  
> try and run a report against data that has been archived I get an  
> internal server error from Apache.
>
> I don't think it is a permissions issue nor do I think it's a  
> security issue. Memory usage on the web box is quit high and  
> avail.cgi seems to use a lot of it so it could be something as  
> simple as not enough memory in the machine (The server currently has  
> 3GB)

Well, I don't know that this will be of much help, but I would  
strongly suspect that memory is not the issue- I have a server with  
about 300 hosts, although there are significantly fewer services than  
you have, but it is running quite happily and generating reports for  
whatever period I want, with only 512MB ram. Actually, about 300MB of  
that is free at the moment, and when I run an availability report, the  
cgi only uses around 3MB. So whatever the issue is, I would doubt the  
problem is a lack of memory.

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
> The server is running Fedora Core 10 as it's OS.
>
> If any one can shed some light on this issues it would be most  
> appreciated.
>
> Kind Regards,
>
> Paul Corcoran
> --
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> unlimited royalty-free distribution of the report engine
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[Nagios-users] Notify via Growl?

[Israel Brewster]

I have nagios running on an openBSD box, and I would like to use  
Growl's network notification options to pop-up alert messages on my  
Mac for certain situations. Does anyone have a script or program that  
can do this already? I've looked around a bit, but all I've found seem  
to assume that nagios is running on the Mac, which is not the case  
here. I've got the Growl dev tools, which come with a python script it  
looks like I could hack to work, but before I spend too much time on  
that I wanted to see if it has already been done. Thanks.

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---




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Re: [Nagios-users] Notify via Growl?

[Israel Brewster]

On May 20, 2009, at 9:52 AM, Mathieu Gagné wrote:

> Hi,
>
> On 5/20/09 1:00 PM, Israel Brewster wrote:
>> I have nagios running on an openBSD box, and I would like to use
>> Growl's network notification options to pop-up alert messages on my
>> Mac for certain situations. Does anyone have a script or program that
>> can do this already? I've looked around a bit, but all I've found  
>> seem
>> to assume that nagios is running on the Mac, which is not the case
>> here. I've got the Growl dev tools, which come with a python script  
>> it
>> looks like I could hack to work, but before I spend too much time on
>> that I wanted to see if it has already been done. Thanks.
>
> 1) Install Net::Growl from CPAN: 
> http://search.cpan.org/~nmcfarl/Net-Growl-0.99/
> 2) Allow network notification in Growl on your Mac and set a password.
> 3) Create a notify script using it based on the provided example.
> 4) Enjoy! :)
>

Which is basically the same thing as hacking the Python script except  
for a) having to start from scratch, and b) having to work in a  
language I have little experience with :-) I was sort of hoping  
someone had already done the above steps and would be willing to  
share :-D Oh well, it won't take more than a couple of hours to whip  
the Python into shape, and has the advantage of being self-contained,  
aside from some standard Python modules (so no installing from CPAN or  
the like). Thanks for the suggestion though :-)

---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


> --
> Mathieu


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Re: [Nagios-users] differing notifications

[Israel Brewster]

On May 20, 2009, at 10:39 AM, Neil Dombrowski wrote:




RijilV wrote:


2009/5/20 Neil Dombrowski :

I haven't been able to find an answer to this conundrum looking at  
the

docs, faq, or googling. I'd love to hear any suggestions.


We have two contact groups; group "adminmail" sends an email to our
mailboxes and "adminphone" sends email to our phones. The idea is  
when a

"warning" notification happens, adminmail gets notified, and when a
"critical" notification happens adminphone gets notified.

As a test I set up two services that check disk. For the first one  
I set:

notification_options w,r
contact_group adminmail

For the second service I set:
notification_options  c
contact_group adminphone

This works, but it's kludgy.  Is there a way to define one  
contact_group

for a warning, and a different contact group for critical? We are
currently running v1.2(yes, old), but will be upgrading  
eventually. I'd
like to know if there's a solution I can implement now; if we need  
to

upgrade to get this functionality I'd like to know as well.

Thanks,
   Neil





http://nagios.sourceforge.net/docs/1_0/xodtemplate.html#contact

Just setup two contacts, one for adminmail that gets warnings, the
other for adminphone that gets crits.  Add them to the same
contract_group, then add that contact group to your service check.
This style/syntax hasn't changed really, save for in nagios 3.x you
don't need the contact group if you don't want it.


.r'

So, basically you're saying to put both contact_groups (adminmail  
and adminphone) into a third contact_group, then use that  
contact_group in the service?  How would I then make warning  
notifications go only to adminmail, and critical notifications go  
only to adminphone?


No, in the individual contacts you can define what sort of  
notifications that individual contact receives, using the  
host_notification_options [d,u,r,f,s,n] and  
service_notification_options [w,u,c,r,f,s,n] directives of the  
contact. So what you do is make two contacts (not groups, but  
individual contacts), specifying that adminmail only receives warning  
(not critical) and adminphone only receives critical (not warning).  
Add both contacts to a single contact group, add that contact group to  
the host, and specify that the host send both critical and warning  
notifications. Due to the filters in the contacts, each contact will  
only receive the appropriate types. If you have more people you need  
to contact, just make more contacts for each person, keeping the phone  
contacts and the mail contacts separate.


---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
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(907) 450-7250 x293
---




Thanks,
Neil
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Re: [Nagios-users] Importing 2.6 config files into a 3.1.0 server

[Israel Brewster]

Step 1: copy the config files from the 2.6 server to the 3.1.0 server
step 2: Make sure it works, and fix any errors that nagios -v reports

It's that easy :)
---
Israel Brewster
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On May 27, 2009, at 12:53 PM, Kaplan, Andrew H. wrote:


Hi there --

Is it possible to import into a 3.1.0 server the configuration files  
that are currently on a 2.6 server?
If so, what steps and/or tools are necessary in order to accomplish  
this task? Thanks.





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Re: [Nagios-users] Hostgroup subtraction?

[Israel Brewster]

On Jun 3, 2009, at 1:25 PM, Marc Powell wrote:



On Jun 3, 2009, at 2:43 PM, Chris Pepper wrote:


We use several hostgroups. I'd like to ensure each host is in a
group for its building. My concern is that we need to avoid adding a
host without adding it to a building hostgroup.

	I tried putting the generic parent object in a hostgroup for our  
main

location, and using 'hostgroups -mainlocation,+actuallocation', but
apparently hostgroups only allows '+', not '-' or '!'.

Is there a way to remove hosts from inherited hostgroups?


In this specific example, using the following in the host{} definition
will override the template definition and the host would only be in
actuallocation --

hostgroups actuallocation


For this example, that works, and perhaps for the original poster it's  
good enough. I'm running into a very similar situation, however, where  
I have a list of hostgroups in a base definition, and I just want to  
remove one hostgroup from that list. I don't want to override the  
entire list, however, because it might change in the future, and then  
I'd have to change it in two spots. Plus, I want to keep the other  
hostgroups, I just don't want the one specific one. So is there a way  
to remove one (or more) item(s) from an inherited hostgroup list,  
without overriding the entire thing? Thanks.


---
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Re: [Nagios-users] Can nagios replace whatsup

[Israel Brewster]

On Jun 17, 2009, at 2:33 AM, Alex Dehaini wrote:Hi Guys,My company uses nagios and whatsup together. Nagios helps us to monitor services and send out notifications and whatsup does live network monitoring. Recently, my supervisor wants me to scrap whatsup for nagios. I am not very comfortable with his decision. What's up is a spot-check tool. Both products views are different. Our nagios server checks over 800 hosts and services while whatsup checks less than 80 devices.Is there a way to configure nagios to be a spot check tool? What do you guys suggest?  I will not mind getting an open-source graphical spot-check tool like whatsupI'm not familiar with whatsup myself, but from what you are saying, it sounds to me like the main difference is that nagios is checking many more hosts than whatsup, although they are both doing similar monitoring. Just looking at the less than 80 hosts monitored by whatsup in nagios is problematic because they get lost among all the other hosts that nagios is checking. Is that correct? If so, perhaps you could simply configure a separate contact in nagios, probably with notification options set to none, and only assign this contact to the 80 or so hosts you want to monitor closely. Then when you log in as that user, only those 80 or so hosts are visible. At least, that is my understanding of how contacts work: only the hosts for which you are a contact are displayed. Perhaps someone else could expound on this as a solution? I also seem to recall reading about/briefly looking at some sort of front-end for nagios that provides a much more customizable view, where you could select just the hosts you want. I think it was Nagios Looking glass: < http://exchange.nagios.org/directory/Addons/Frontends-(GUIs-and-CLIs)/Web-Interfaces/Nagios-Looking-Glass/details > Perhaps this will suit your purposes?---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293- Alex DehainiDeveloperSite - www.alexdehaini.comEmail - alexdeha...@gmail.com --Crystal Reports - New Free Runtime and 30 Day TrialCheck out the new simplified licensing option that enables unlimitedroyalty-free distribution of the report engine for externally facing server and web deployment.http://p.sf.net/sfu/businessobjects___Nagios-users mailing listNagios-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/nagios-users::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/nullBEGIN:VCARD
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Re: [Nagios-users] Nagios plugin for monitoring files in a directory?

[Israel Brewster]

On Jul 10, 2009, at 8:16 AM, David Rosenstrauch wrote:

Just wondering if anyone might have some pointers on a monitoring  
puzzle

I've run into.

We have a couple of automated processes - one of them an automated FTP
upload, the other an automated log file gatherer - which wind up  
causing

essentially the same result:  new files regularly getting added to a
disk directory.  I need to set up monitoring on this, since if we're  
not

getting new files showing up then something has crashed and our system
won't be getting updated properly.

Not quite sure how to do this, though - i.e., which nagios plugin  
would

help me get the job done.

I've used the check_file_age plugin successfully in a couple of spots.
E.g., to verify that a backup process has been run successfully I
perform a unix "touch" on a "last-backup-date" file at the end of the
backup, and then have the check_file_age plugin check the age of that
file.  I don't think I can use that plugin & technique here,  
however, since:


a) Each uploaded file has a different (timestamped) name, which I  
don't
know ahead of time.  So I have no way to tell the check_file_age  
plugin

which file to monitor.

b) Unlike my backup process, which I wrote and was able to alter to
touch the last-backup-date file, I don't have control over the  
external

processes creating/uploading these files.


I saw there were some rudimentary directory-monitoring plugins over at
the Monitoring Exchange site, but they seem like they can only do  
things
like monitor the number of files in a directory vs. a threshold  
minimum,

which is not quite what I want.  (I don't really care about how many
files there are in the directory.)


Anyone have any suggestions on an existing plugin (either part of the
standard Nagios release, or available from Monitoring Exchange) that  
can

help here?  I'm not afraid to roll my own plugin if needed, but I'd
obviously prefer to save myself some work and use an existing one if
possible.


How about using check_file_age on the directory itself? I think the  
timestamp of the directory is updated whenever a new file is added. Or  
are there other processes going in in the directory, such as deletions  
or modifications, that might make this value unreliable?


---
Israel Brewster
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Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


Thanks,

DR

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[Nagios-users] SNMP Monitoring conundrum

[Israel Brewster]

I have a number of scripts I have developed to monitor our UPS units  
via SNMP - I found the included plugins didn't give me enough power/ 
flexibility with the monitoring, so I made my own. Unfortunately, we  
have just added a new UPS to the system which, although made by the  
same company, uses different OID's for the data I am pulling. Thus the  
issue: I want the same data, so other than the OID's the existing  
scripts would work. But how do I deal with different OID's on  
different devices?


So far I've thought of the following:
1) Make a second copy of my scripts with the new OID's. Also implies  
creating new contacts to use the new script (the notification script  
pulls data such as estimated run time via snmp) and maintaining two  
copies of each check/notification script


2) Somehow pass the OID's to the scripts from nagios. Not quite sure  
how I would manage this, as the OID's would need to be associated with  
the hosts, and further complicated by the fact that some scripts use 3  
or more OID's - for example, the main script looks at UPS state(On  
battery, on line power, etc) estimated run time (if on battery) and  
time on battery - so it would need to be passed three separate OIDS.  
Perhaps this approach could be simplified by simply passing a code  
identifying which set of OID's the script should use, at the expense  
of a more complicated script. Still need to find some way of getting  
that into Nagios so it can pass the appropriate value to the script  
though.


Anyone else run into a similar situation? What does everyone else  
think the best approach here is? Thanks.


---
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Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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Re: [Nagios-users] nagios log file date format

[Israel Brewster]

On Jul 15, 2009, at 8:23 AM, Chris Waters wrote:


You could do something like this:

Replace the paths to reflect your environment.

tail -f /usr/local/nagios/var/nagios.log | perl -pe
's/(\d+)/localtime($1)/e'
   or
grep 'something important to look for'
somelogfilewithepochtimestamps.log | perl -pe 's/(\d+)/localtime($1)/ 
e'

   or
perl -pe 's/(\d+)/localtime($1)/e'  somelogfilewithepochtimestamps.log



Thank you! This is (for me at least) a much better approach than the  
one specified in the FAQ, in that I can (as in your first example) use  
it with tail -f for real-time monitoring when testing stuff. Any  
chance of getting this approach incorporated into the FAQ's?

-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



Chris Waters



From: shadih rahman [mailto:shadhi...@gmail.com]
Sent: Wednesday, July 15, 2009 9:10 AM
To: nagios-users@lists.sourceforge.net
Subject: [Nagios-users] nagios log file date format


Is there any way to change nagios log file date format to human  
readable
format.  I did not see any option in nagios.cfg file.  Please advise  
on

this.  Thanks

--
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Re: [Nagios-users] SNMP Monitoring conundrum

[Israel Brewster]

---
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On Jul 16, 2009, at 2:26 PM, Marc Powell wrote:



On Jul 16, 2009, at 4:50 PM, Israel Brewster wrote:


I have a number of scripts I have developed to monitor our UPS units
via SNMP - I found the included plugins didn't give me enough power/
flexibility with the monitoring, so I made my own. Unfortunately, we
have just added a new UPS to the system which, although made by the
same company, uses different OID's for the data I am pulling. Thus
the issue: I want the same data, so other than the OID's the
existing scripts would work. But how do I deal with different OID's
on different devices?

So far I've thought of the following:
1) Make a second copy of my scripts with the new OID's. Also implies
creating new contacts to use the new script (the notification script
pulls data such as estimated run time via snmp) and maintaining two
copies of each check/notification script

2) Somehow pass the OID's to the scripts from nagios. Not quite sure
how I would manage this, as the OID's would need to be associated
with the hosts, and further complicated by the fact that some
scripts use 3 or more OID's - for example, the main script looks at
UPS state(On battery, on line power, etc) estimated run time (if on
battery) and time on battery - so it would need to be passed three
separate OIDS. Perhaps this approach could be simplified by simply
passing a code identifying which set of OID's the script should use,
at the expense of a more complicated script. Still need to find some
way of getting that into Nagios so it can pass the appropriate value
to the script though.


Beyond what you've received so far, you can pass arguments to the
command from the service definitions too so there are a number of ways
that you can pass information for your script to act on. The only part
you really need to figure out is what 'standard' information you want
to pass to the script and what tools the language it's written is
provides to parse those arguments --


Good suggestion, and it would certainly work. However, that would  
muddy up (to some extent) my nagios configs. The way I have things set  
up at the moment, there is one (ok, two actually, but same idea)  
service for UPS checks, which is applied to the UPS host group. So to  
add a new UPS all I need to do is add a new host with a "use generic- 
UPS" directive, the name, ip, and parent. Keeps everything nice and  
simple. Overriding that for a specific Host (or hosts) would add to  
the complexity, something I would like to avoid as much as possible.  
Thanks for the suggestion though.




http://nagios.sourceforge.net/docs/3_0/macros.html (Command Argument
Macros)

define service {
host_name fancyups1
service_description SNMPCHECK
check_command my_check_command!APC!.1.3.1.6.1.3!.1.3.1.7.5.4
}
define service {
host_name fancyups1
service_description SNMPCHECK
check_command my_check_command!APC!.1.3.1.6.1.3!.1.3.1.7.5.4
}
define service {
host_name fancyups2
service_description SNMPCHECK
check_command my_check_command!MGE!.1.3.1.6.1.3.10.17!.
1.3.1.6.1.4.3.2.4
}

define command {
command_name my_check_command
command_line $USER1$/my_custom_script --type $ARG1$ --oid $ARG2$ --
oid $ARG3$  ; assumes your script can parse opts or
#   command_line $USER1$/my_custom_script $ARG1$ $ARG2$ $ARG3$
}

The two above then become
/path/to/my_custom_script --type APC --oid .1.3.1.6.1.3 --oid .
1.3.1.7.5.4
/path/to/my_custom_script --type MGE --oid .1.3.1.6.1.3.10.17 --oid .
1.3.1.6.1.4.3.2.4

or

/path/to/my_custom_script APC  .1.3.1.6.1.3  .1.3.1.7.5.4
/path/to/my_custom_script  MGE  .1.3.1.6.1.3.10.17  .1.3.1.6.1.4.3.2.4

--
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Re: [Nagios-users] SNMP Monitoring conundrum

[Israel Brewster]

On Jul 16, 2009, at 2:06 PM, Mark Gius wrote:

I would suggest you use custom object variables (http://nagios.sourceforge.net/docs/3_0/customobjectvars.html 
).  This is a nagios 3 feature, so if you're on 2.0 you'll need to  
upgrade.


Basically, you can define custom variables into hosts/services/ 
whatever.  So you'd have a custom object var in the host

define host {
  name   UPS-thing
  _OIDS  <-- This being the custom variable that  
you define.

}

and in your service you'll have

define service {
   namesnmp-check
   check_command check_snmp!$_HOSTOIDS$  <-- Use it like so
}

-Gius


Ah, I KNEW I had seen something about that sort of thing somewhere! I  
think I'll probably combine this with Jon Angliss's suggestion (adding  
a version argument). Although if I start having more than a couple of  
sets of OID's to worry about, I may rethink that approach to avoid my  
scripts becoming unmaintainably large. Thanks.

-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
-------



Israel Brewster wrote:
I have a number of scripts I have developed to monitor our UPS  
units via SNMP - I found the included plugins didn't give me enough  
power/flexibility with the monitoring, so I made my own.  
Unfortunately, we have just added a new UPS to the system which,  
although made by the same company, uses different OID's for the  
data I am pulling. Thus the issue: I want the same data, so other  
than the OID's the existing scripts would work. But how do I deal  
with different OID's on different devices?


So far I've thought of the following:
1) Make a second copy of my scripts with the new OID's. Also  
implies creating new contacts to use the new script (the  
notification script pulls data such as estimated run time via snmp)  
and maintaining two copies of each check/notification script


2) Somehow pass the OID's to the scripts from nagios. Not quite  
sure how I would manage this, as the OID's would need to be  
associated with the hosts, and further complicated by the fact that  
some scripts use 3 or more OID's - for example, the main script  
looks at UPS state(On battery, on line power, etc) estimated run  
time (if on battery) and time on battery - so it would need to be  
passed three separate OIDS. Perhaps this approach could be  
simplified by simply passing a code identifying which set of OID's  
the script should use, at the expense of a more complicated script.  
Still need to find some way of getting that into Nagios so it can  
pass the appropriate value to the script though.


Anyone else run into a similar situation? What does everyone else  
think the best approach here is? Thanks.


---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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Re: [Nagios-users] SNMP Monitoring conundrum

[Israel Brewster]

On Jul 16, 2009, at 2:08 PM, Max wrote:


On Thu, Jul 16, 2009 at 5:50 PM, Israel
Brewster wrote:
Anyone else run into a similar situation? What does everyone else  
think the

best approach here is? Thanks.


We do a lot of SNMP monitoring for a number of various agents -
Net-SNMP, Cisco, Sysedge.  I have found it to be much easier to
maintain and release the scripts by doing one agent type per script.
This lets you create a 'bundle' of scripts for an agent type.

E.g.

net-snmp/check_net_snmp_cpu.pl
net-snmp/check_net_snmp_disk.pl
net-snmp/check_net_snmp_la.pl
net-snmp/check_net_snmp_mem.pl
net-snmp/check_net_snmp_procs.pl
net-snmp/check_net_snmp_swap.pl

sysedge/check_sysedge_cpu.pl
sysedge/check_sysedge_la.pl
sysedge/check_sysedge_mem.pl
sysedge/check_sysedge_swap.pl
sysedge/check_sysedge_unix_storage.pl

This then helps us also keep our configurations consistent as we do
the service definitions and comand definitions in files by type ..

ommands/net-snmp.cfg
commands/sysedge.cfg

services/net-snmp.cfg
services/sysedge.cfg

As you know, code bases get pretty big pretty quickly with SNMP, so
having one agent type per script also decreases the chances of bugs
and makes it easier to fix bugs when they arise.

So my personal recommendation is to keep the scripts to 1 agent type  
per script.


So if I understand you correctly, after you make 1 agent type per  
script, you would then write a wrapper script calling multiple  
individual scripts for the cases where you want more than one piece of  
data? The approach certainly bears consideration, especially since, as  
you say, the simpler scripts make debugging easier. I hadn't  
originally thought of that approach because I wanted two pieces of  
data displayed in nagios: power state and estimated run time, so I  
just made one script that gave that data. It might be worth breaking  
it down more though. Thanks for the suggestion.


-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Version 2.12 vs. 3.1.2

[Israel Brewster]

For the most part, yes, v. 2 config files will convey transparently to  
v.3 There may be some of the more obscure parameters in v2 that don't  
work, but you'd have to consult the documentation to find out what,  
specifically. In general though, as long as you don't do anything TOO  
fancy, there shouldn't be any problems. There wasn't for me. General  
procedure is to upgrade to 3, run a check on your config files, and if  
any errors are reported, fix them. As I said, for me, there wasn't any  
problems reported, so you should be fine.

-------
Israel Brewster
Computer Support Technician II
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5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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On Aug 5, 2009, at 12:04 PM, Neil Dombrowski wrote:

I am new to fairly new to nagios, and have to set up a new server  
with a

new config. Currently when we do a yum install nagios we get 2.12, but
I'm hearing that we'll have v3 in our repository soon.  My question  
is:

if I use v2.12 to set up my config files, will they just plug into v3?

If the format/location of the files are the same, then I can just
install 2.12 and configure it now. If they are different, I'll  
probably

get v3 elsewhere and start with that.

Thanks,
   Neil

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[Nagios-users] Contact options on a hostgroup?

[Israel Brewster]

Is there any way to apply contact options to a hostgroup? What I'm looking for is a way to make different hostgroups with different contacts and contact options, such as "Emergency", "high-priority", "low-priority" etc. At the moment I am putting these things into the host template, and then for any hosts that need to vary (such as a lower-priority file server as opposed to our high-priority database server), I override the contact_groups and/or notification_options directive. This works, but makes maintenance a little difficult as there is no easy way to look at just my high-priority servers or the like and see what I have where. Is there a better way of handling this? Thanks. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] Contact options on a hostgroup?

[Israel Brewster]

On Sep 14, 2009, at 12:01 PM, Terry wrote:


On Mon, Sep 14, 2009 at 1:04 PM, Israel Brewster
 wrote:
Is there any way to apply contact options to a hostgroup? What I'm  
looking

for is a way to make different hostgroups with different contacts and
contact options, such as "Emergency", "high-priority", "low- 
priority" etc.
At the moment I am putting these things into the host template, and  
then for
any hosts that need to vary (such as a lower-priority file server  
as opposed
to our high-priority database server), I override the  
contact_groups and/or
notification_options directive. This works, but makes maintenance a  
little
difficult as there is no easy way to look at just my high-priority  
servers
or the like and see what I have where. Is there a better way of  
handling

this? Thanks.
-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


I am not sure I understand 100%.  If you just want a way to logically
see all of your high priority servers, just create another hostgroup
called high-priority and join the respective hosts to that hostgroup.
You can then see only hosts in that hostgroup in the CGIs and apply
commands to them.


The point isn't so much to see all the high-priority servers grouped,  
but rather to have an easy way of applying "high-priority" contacts to  
the hosts that need it. The grouping that would occur with a hostgroup  
would just be an added bonus. I could, of course, use host templating  
for this, but the problem with that is that I already heavily use  
templating to simplify my configs. Trying to add high-priority/low- 
priority to the host templates would double the number of host  
templates I would need, creating an annoyingly large number of host  
templates. If I could apply contact groups/notification options to a  
hostgroup, however, then all I would need to do is add one hostgroup,  
and one config line to each host that is high-priority.


---
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

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Re: [Nagios-users] Contact options on a hostgroup?

[Israel Brewster]

On Sep 15, 2009, at 8:28 AM, Marc Powell wrote:



On Sep 15, 2009, at 11:01 AM, Israel Brewster wrote:


If I could apply contact groups/notification options to a
hostgroup, however, then all I would need to do is add one
hostgroup, and one config line to each host that is high-priority.


You cannot apply contactgroups to a hostgroup. You used to be able to
do so long ago but that was abandoned in favor of the greater
flexibility of applying contacts per host{} and templates.


That's pretty much what I thought (at least about not being able to do  
it), but it's always nice to have confirmation. I guess if I work it  
right though, it should still only be a single line added, that being  
the contact group. Thanks.

-------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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[Nagios-users] Environment variables

[Israel Brewster]

Is there anything special (say, in the nagios config) that I need to do in order to use environment variables in my notification scripts? From the documentation, it looks like the various macros should be made available as enviroment variables, such as NAGIOS_HOSTNAME. However, when I do the following in my shell script:ADDRESS=$NAGIOS_HOSTADDRESSNAME=$NAGIOS_HOSTNAMESTATE=$NAGIOS_SERVICESTATETYPE=$NAGIOS_NOTIFICATIONTYPETIME=$NAGIOS_LONGDATETIMEDESC=$NAGIOS_SERVICEDESCINFO=$NAGIOS_SERVICEOUTPUT I get nothing in the notification email that uses the above set variables. Additionally, if I dump the output of the env command into the e-mail, it doesn't show any NAGIOS_ variables. What am I missing here? The goal is for the script to be able to query the appropriate environment variables directly, rather than having to have a huge long (hard to read) command string that passes in everything from the macros as arguments. Thanks. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] Environment variables

[Israel Brewster]

Never Mind, I found the configuration directive in the nagios .conf.On Sep 15, 2009, at 12:24 PM, Israel Brewster wrote:Is there anything special (say, in the nagios config) that I need to do in order to use environment variables in my notification scripts? From the documentation, it looks like the various macros should be made available as enviroment variables, such as NAGIOS_HOSTNAME. However, when I do the following in my shell script:ADDRESS=$NAGIOS_HOSTADDRESSNAME=$NAGIOS_HOSTNAMESTATE=$NAGIOS_SERVICESTATETYPE=$NAGIOS_NOTIFICATIONTYPETIME=$NAGIOS_LONGDATETIMEDESC=$NAGIOS_SERVICEDESCINFO=$NAGIOS_SERVICEOUTPUT I get nothing in the notification email that uses the above set variables. Additionally, if I dump the output of the env command into the e-mail, it doesn't show any NAGIOS_ variables. What am I missing here? The goal is for the script to be able to query the appropriate environment variables directly, rather than having to have a huge long (hard to read) command string that passes in everything from the macros as arguments. Thanks. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293--- --Come build with us! The BlackBerry® Developer Conference in SF, CAis the only developer event you need to attend this year. Jumpstart yourdeveloping skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now!http://p.sf.net/sfu/devconf___Nagios-users mailing listNagios-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/nagios-users::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] What would you want in a replacement web interface?

[Israel Brewster]

2009/11/16 Taylor Dondich :


#3) What is your biggest gripe regarding the existing Nagios web user
interface?



The lack of a real search. The select box is practically useless. For  
example, I have a bunch of hosts named ffs-, but if I type  
in ffs- to the search box, I only get one result. I would really like  
a real (albeit simple) search so if I type ffs, I get ALL hosts  
containing ffs.

---
Israel Brewster
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5245 Airport Industrial Rd
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Re: [Nagios-users] What would you want in a replacement web interface?

[Israel Brewster]

No, knowing how to do "regular _expression_" (or wildcard) searches is not an extreme requirement. In fact, it makes perfect sense, and I am intimately familiar with both. That said, last time I tried that it didn't work - I'm not so stupid as to not think to try a simple wildcard :-). On the other hand, I'm running 3.0.6, as that is what is distributed with the stable version of OpenBSD. Perhaps this is something that was fixed in 3.1 or 3.2? I seem to recall reading something about a new web interface. So my point stands that this is MY biggest gripe with the web interface. If it's already been fixed, awesome! :-)On Nov 24, 2009, at 11:48 AM, shadih rahman wrote:This is not an issue.  nagios search bar does regular _expression_ search.  do ffs-* in your box and it will result in all the hosts.  Nagios is a monitoring tool.  I think nagios users and administrators are some what involved with technology.  Knowing how to do "regular _expression_" search is not an extreme requirement. On Tue, Nov 24, 2009 at 1:47 PM, Israel Brewster <isr...@frontierflying.com> wrote:  2009/11/16 Taylor Dondich <tdond...@lilacnetworks.com>:   #3) What is your biggest gripe regarding the existing Nagios web user interface?The lack of a real search. The select box is practically useless. For example, I have a bunch of hosts named ffs-, but if I type in ffs- to the search box, I only get one result. I would really like a real (albeit simple) search so if I type ffs, I get ALL hosts containing ffs. --- Israel Brewster Computer Support Technician II Frontier Flying Service Inc. 5245 Airport Industrial Rd Fairbanks, AK 99709 (907) 450-7250 x293 ----- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now.  http://p.sf.net/sfu/bobj-july___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null-- Cordially,Shadhin Rahman ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] Nagios with MRTG

[Israel Brewster]

Probably the most straightforward way is to use the notes_url host directive to link to the MRTG generated graphs from nagios. Doesn't precisely "embed" the graphs in nagios, but at least you can access them from the nagios interface with just one click. For my installation, I've simply placed a link to the MRTG graphs in the nagios sidebar, but while perhaps more work, I would think using the notes_url (and optional notes_icon) directives would be a bit nicer.On Dec 2, 2009, at 11:38 PM,   wrote:Hello, Thank you for your reply, but seems the check_mrtg plugin can get the MRTG data and show the value in the Nagios. However, it seems no way to use the MRTG data and create a graph like MRTG, and embedded into Nagios. That is when I click the monitored interface, it will show the MRTG graph instead of Nagios format. Thank you. Terry ChowSystem EngineerFortis (Hong Kong) Limited28/F Fortis Bank Tower77-79 Gloucester RoadHong KongTel : +852-3653-0823Email : terry.c...@hk.fortisnl.com From: webknowle...@gmail.com [mailto:webknowle...@gmail.com] On Behalf Of MarcelSent: Friday, November 27, 2009 4:51 AMTo: Chow TerryCc: nagios-users@lists.sourceforge.netSubject: Re: [Nagios-users] Nagios with MRTG There is a check_mrtg plugin, if i recall correctly, you can check against values on the RRD.On Thu, Nov 26, 2009 at 7:07 AM,  wrote:Dear all, I am currently using Nagios 3 in Solaris 10 X86 version, it is fine. Also I have install MRTG on the server and configure to collect one switch interface traffic for testing. Is it possible to integrate MRTG graph about the switch interface traffic into Nagios? So that I can use Nagios portal to view the switch uptime, or other alert and also view the bandwidth usage of the switch in MRTG format. Thank you. Terry ChowSystem EngineerFortis (Hong Kong) Limited28/F Fortis Bank Tower77-79 Gloucester RoadHong KongTel : +852-3653-0823Email : terry.c...@hk.fortisnl.com This message (including any attachments ) is confidential and is intended solely for the use of the individual or entity to whom it is addressed. If you have received this message by mistake please notify the sender by return email and delete this message from your system. Any unauthorised use or dissemination of this message in whole or in part is strictly prohibited.--Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Daytrial. Simplify your report design, integration and deployment - and focus onwhat you do best, core application coding. Discover what's new withCrystal Reports now.  http://p.sf.net/sfu/bobj-july___Nagios-users mailing listNagios-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/nagios-users::: Please include Nagios version, plugin version (-v) and OS when reporting any issue.::: Messages without supporting info will risk being sent to /dev/null 
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--Join us December 9, 2009 for the Red Hat Virtual Experience,a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere.http://p.sf.net/sfu/redhat-sfdev2dev___Nagios-users mailing listNagios-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/nagios-users::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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[Nagios-users] Nagios stops updating

[Israel Brewster]

I want to say this is a FAQ, as I seem to recall seeing something about this behavior before, but I didn't find anything with a quick search, and I don't thing there was any real solution posted, so I'm going to ask now. I am running Nagios 3.2.0 on OpenBSD 4.6. I have found that from time to time nagios will simply stop updating. No errors will be produced, and the nagios log will show normal operation right up until it stops updating. After that, nothing. I have implemented a work around of a script that checks for this and restarts nagios if needed, but obviously this is a sub-optimal solution. Has anyone  seen this behavior before that might have some idea how I can fix it? Or does anyone have a suggestion as to how I can go about debugging it? Thanks. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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[Nagios-users] Override interval_length for specific service only

[Israel Brewster]

I was wondering if there was any way with nagios 3.2 to override the global interval_length for a specific service? I have one service that I would like to check every 30 seconds, but interval_length in 60. I could change the interval_length definition, of course, but then I would have to go back through all my definitions and change the interval values I used there. This may not be too bad, as I make heavy use of templating, but it would be preferable to simply override this for the one service. ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] Override interval_length for specific service only

[Israel Brewster]

On Jan 7, 2010, at 2:37 AM, matthias.fla...@gmx.de wrote:



I was wondering if there was any way with nagios 3.2 to override  
the global interval_length
for a specific service? I have one service that I would like to  
check every 30 seconds, but
interval_length in 60. I could change the interval_length  
definition, of course, but then I
would have to go back through all my definitions and change the  
interval values I used there.
This may not be too bad, as I make heavy use of templating, but it  
would be preferable to

simply override this for the one service.


In Nagios3 you can specify fraction numbers for the check_interval.

So with the standard interval_length of 60 seconds a check_interval  
of 0.5 would configure

a 30 seconds interval for your particular check.


Perfect, Thanks :-)



-Matthias


---
Israel Brewster
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Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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[Nagios-users] Dependancy clarification

[Israel Brewster]

Here's the situation: running nagios 3.2.0, I have two services, we'll call them A and B. Both have event handlers such that if they register a hard critical state, Nagios attempts to restart them. Service B depends on service A, such that when service A goes down, service B does as well, causing them both to need restarted, with A needing to be restarted first. I have a servicedependancy set up in nagios specifying service B's dependancy on service A.My understanding is that the way this works is that when nagios goes to check service B, it first looks at the "current" state (as defined by the last nagios check) of service A, and, if the execution_failure_criteria matches (i.e. if service A is down) nagios does not run the check on service B, thus not running the event handler to attempt to restart B until A is back up. This is good. But what happens in the following scenario?Service A is scheduled to check every 5 minutes.1) Nagios does a normally scheduled check of service A, finding it to be OK.2) One minute later, Service A crashes3) One minute after that (three minutes prior to the next regular check of service A), thanks to nagios staggering checks, Nagios goes to do a normal check of service BNow, to my understanding of this scenario, the check on service B would run normally, since the last check on A was OK, and nagios uses cached results for dependancy checks. Since service A is actually critical, service B will be critical as well. The problem with this is that Nagios will respond by attempting to restart service B, which will invariably fail since service A is still down. Once the next regular check time for service A is reached, Nagios will detect service A as down and restart it, but service B will never get restarted successfully, since nagios already tried and failed. Is this correct? If so, what can be done about it? Or is nagios smart enough to schedule its service checks to avoid this scenario? It seems that the most logical solution (if possible) would be to mirror the service/host check logic. That is, when a check of service B comes back as critical, immediately check service A. If service A is critical, then don't declare service B to be critical until service A is OK, at which point B would enter a hard down state and run the event handler. Alternately, if I could say something like always check service A immediately before checking service B to make sure our data is current, that would work as well. Although I could see it resulting in excessive checking of service A, which may be less desirable. What do you guys think?  ---Israel BrewsterComputer Support Technician IIFrontier Flying Service Inc.5245 Airport Industrial RdFairbanks, AK 99709(907) 450-7250 x293---BEGIN:VCARD
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Re: [Nagios-users] Dependancy clarification

[Israel Brewster]

On Jan 8, 2010, at 2:55 PM, gmartin wrote:Israel, I believe you are correct.  I'll be interested to hear what other shave to say on the inner workings.  In the meantime, can the problem be solved if the event handler for Service B is  written to restart svc A  if it is down? (perhaps it calls the same nagios check from the command line and acts on the results)Yeah, that should work, at least for my specific situation. Of course, doing so greatly reduces the utility of having the dependancy in the first place, since the situations under which it would be triggered (given nagios restarting service A as soon as it detects it as down) would be somewhat rare, and even when triggered it would no longer be needed, since the service B event handler does its own dependancy checking. The only time the dependancy would apply (assuming our understanding is right) is in the situation where Nagios detects A as down, and then tries to run a check on B before verifying that A is back up. Of course, even then it wouldn't matter, since a) nagios should have restarted service A immediately (so a straight restart of B would be fine), and b) even if nagios didn't, the new event handler for service B would. At which point there is no need of the dependancy at all, since the event handler takes care of the dependancies. Basically, if the dependancy only applies when nagios ALREADY knows service A is down, then the dependancy is basically useless, at least in this situation. Of course, if this is just the way dependancies work, then there may be no other option. Thanks for the feedback. \\Greg On Fri, Jan 8, 2010 at 6:07 PM, Israel Brewster <isr...@frontierflying.com> wrote: Here's the situation: running nagios 3.2.0, I have two services, we'll call them A and B. Both have event handlers such that if they register a hard critical state, Nagios attempts to restart them. Service B depends on service A, such that when service A goes down, service B does as well, causing them both to need restarted, with A needing to be restarted first. I have a servicedependancy set up in nagios specifying service B's dependancy on service A. My understanding is that the way this works is that when nagios goes to check service B, it first looks at the "current" state (as defined by the last nagios check) of service A, and, if the execution_failure_criteria matches (i.e. if service A is down) nagios does not run the check on service B, thus not running the event handler to attempt to restart B until A is back up. This is good. But what happens in the following scenario? Service A is scheduled to check every 5 minutes.1) Nagios does a normally scheduled check of service A, finding it to be OK.2) One minute later, Service A crashes3) One minute after that (three minutes prior to the next regular check of service A), thanks to nagios staggering checks, Nagios goes to do a normal check of service B Now, to my understanding of this scenario, the check on service B would run normally, since the last check on A was OK, and nagios uses cached results for dependancy checks. Since service A is actually critical, service B will be critical as well. The problem with this is that Nagios will respond by attempting to restart service B, which will invariably fail since service A is still down. Once the next regular check time for service A is reached, Nagios will detect service A as down and restart it, but service B will never get restarted successfully, since nagios already tried and failed.  Is this correct? If so, what can be done about it? Or is nagios smart enough to schedule its service checks to avoid this scenario? It seems that the most logical solution (if possible) would be to mirror the service/host check logic. That is, when a check of service B comes back as critical, immediately check service A. If service A is critical, then don't declare service B to be critical until service A is OK, at which point B would enter a hard down state and run the event handler. Alternately, if I could say something like always check service A immediately before checking service B to make sure our data is current, that would work as well. Although I could see it resulting in excessive checking of service A, which may be less desirable. What do you guys think?    ------- Israel Brewster Computer Support Technician II Frontier Flying Service Inc. 5245 Airport Industrial Rd Fairbanks, AK 99709 (907) 450-7250 x293 ----- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev __

Re: [Nagios-users] Time-Saving Tricks For Service Definitions

[Israel Brewster]

On Jun 29, 2007, at 8:48 AM, Caylan Van Larson wrote:


Howdy,

I think I've found a bug with the "Object Definition Tricks" found  
at http://nagios.sourceforge.net/docs/2_0/templatetricks.html#service.


Here is my configuration using the tricks above, which works...

define host {
use production-host
host_name   myhost
alias   My Host
address x.x.x.x
hostgroups  dell-servers
}

define hostgroup{
hostgroup_name   dell-servers
aliasDell Servers
}

define service{
 namedell-hardware
 service_description Dell Hardware
 hostgroup_name  dell-servers
 contact_groups  sysadmins
 check_command   check_nrpe!check_dell
}

Right up until I add back in a legacy host/service definition...

define host {
use production-host
host_name   newhost
alias   New Host
address y.y.y.y
}

define service {
 use dell-hardware
 hostnewhost
}

Error: Service 'Dell Hardware' on host 'myhost' has already been  
defined
Error: Could not register service (config file  newhost.cfg on  
line XX)


Question:  Why does "using" dell-hardware in a normal syntax  
(remember, my goal is to migrate the old style in red to the new  
hostgroups trick style above), is not compatible when the service  
has a hostgroup_name defined?  This looks to me like a bug, where  
it's trying to redefine the service instead of just using it.


Thoughts?


My thought is that you need a unique "name" directive in the second  
service that uses dell-hardware. Otherwise the service with the use  
directive has the same name as the service it is using, causing  
exactly what the error says- the service dell hardware has already  
been defined, and yes, you are trying to re-define it. Basically,  
when you insert the use directive, it copies everything from the  
service (or whatever) you tell it to use into the new one, except for  
any directives that are explicitly set in the new on. And since you  
can't have two service definitions with the same name, you get that  
error.


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293

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[Nagios-users] Searching in web interface

[Israel Brewster]

When using the search box in the Nagios sidebar, is there a way I can  
get it to bring up multiple, or wildcard matches? For example, all of  
our computers out in Nome are named ome-whatever. I would like to be  
able to type "ome-" (or "ome-*" or whatever) into that search box,  
and have it pull up a listing of all Nome computers. Unfortunately,  
at the moment it only appears to return the first result. So if I  
have computers named ome-computer1 and ome-computer2, a search for  
"ome-" only shows ome-computer1. Is there some way I can change this  
behavior? Thanks.

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Reverse checks possible?

[Israel Brewster]

On Jul 9, 2007, at 6:19 PM, Demetri Mouratis wrote:

> On Mon, 9 Jul 2007, Rogelio Bastardo wrote:
>
>> On 7/9/07, Patrick Morris <[EMAIL PROTECTED]> wrote:
>>>
>>> Sure. See the "negate" plugin.
>>
>>
>> Thanks!
>>
>> For whatever reason, I'm not getting what I'm expecting.
>>
>> Oddly, I get the same OK result, regardless of whether or not I  
>> use the
>> negate command.
>>
>> e.g.
>>
>> [EMAIL PROTECTED] plugins]# ./check_http -H www.google.com
>> HTTP OK HTTP/1.0 200 OK - 6045 bytes in 0.101 seconds
>> |time=0.101285s;;;0.00
>> size=6045B;;;0
>> [EMAIL PROTECTED] plugins]#
>>
>> and
>>
>> [EMAIL PROTECTED] plugins]# ./negate "/usr/lib/nagios/plugins/ 
>> check_http -H
>> www.google.com"
>> HTTP OK HTTP/1.0 200 OK - 6043 bytes in 0.616 seconds
>> |time=0.615904s;;;0.00
>> size=6043B;;;0
>>
>>
>> Not sure what exactly I'm doing wrong
>>
>
>
> Look at the return code.
>
> # echo $?
>
> -D
>

Exactly- the negate plugin flips the return code, which is what  
nagios actually uses to determine the unknown/critical/ok/warning  
state of a host/service, not the returned status text. The reason for  
this is that it would be rather difficult, if not impossible, to  
negate the text itself- what is the opposite of "A"? While the status  
text may seem to be one of a set number of options (UNKNOWN, OK,  
WARNING, CRITICAL) in reality it is just a bunch of text that is  
whatever the author of the plugin wanted it to be, and therefore has  
no real "negative"

---
Israel Brewster
Computer Support Technician
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5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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Re: [Nagios-users] NDOutils on FreeBSD -- solved

[Israel Brewster]

Oops, forgot to copy this to the list. Would be nice if that was  
somewhat more automatic :-P Sorry.

On Aug 22, 2007, at 7:57 AM, Ton Voon wrote:

>
> On 22 Aug 2007, at 16:44, Michael W. Lucas wrote:
>
>> checking for type of socket size... size_t
>> checking for linker flags for loadable modules... -shared
>> checking for mysql_config... /usr/local/bin/mysql_config
>> checking for mysql_init in -lmysqlclient... yes
>> MySQL library and include file(s) were found!
>> ...
>>
>> This is more like it.  Now make the main distribution work like
>> that.  ;-)
>
> That's up to Ethan. Another happy user may sway him...

Well, count me in as another happy user, at least as far as the  
configure part of the process goes. I ran into the same issues  
running configure on OpenBSD 4.1, and that fix worked. I am still  
having some problems with the make itself, but that's an issue for  
another thread :)
---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
> Ton
>
> http://www.altinity.com
> T: +44 (0)870 787 9243
> F: +44 (0)845 280 1725
> Skype: tonvoon
>
>
>
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[Nagios-users] NDOUtils 1.4b4 OpenBSD build issue

[Israel Brewster]

I am attempting to build and install NDOUtils 1.4b4 on an OpenBSD 4.1  
box. Configure runs fine (after making the modifications mentioned in  
the NDOutils on FreeBSD -- solved thread), but when I run make I get  
the following:

#make
[...snip small amount of normal output...]
gcc -I/usr/local/include/mysql -DHAVE_CONFIG_H -c -o db.o db.c
gcc -I/usr/local/include/mysql -DHAVE_CONFIG_H -D BUILD_NAGIOS_2X -c - 
o dbhandlers-2x.o dbhandlers.c
In file included from dbhandlers.c:23:
../include/nagios-2x/nagios.h:452: error: syntax error before  
"pthread_mutex_t"
*** Error code 1

Stop in /root/ndoutils-1.4b3/src (line 84 of Makefile).
*** Error code 1

Stop in /root/ndoutils-1.4b3/src (line 52 of Makefile).
*** Error code 1

Stop in /root/ndoutils-1.4b3 (line 13 of Makefile).

Anyone know how I can solve this? Thanks.
-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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[Nagios-users] NDOUtils 1.4b4 OpenBSD build issue

[Israel Brewster]

As an alternative to a solution to the problem described below, could  
anyone suggest where I might ask next?

I am attempting to build and install NDOUtils 1.4b4 on an OpenBSD 4.1  
box. Configure runs fine (after making the modifications mentioned in  
the NDOutils on FreeBSD -- solved thread), but when I run make I get  
the following:

#make
[...snip small amount of normal output...]
gcc -I/usr/local/include/mysql -DHAVE_CONFIG_H -c -o db.o db.c
gcc -I/usr/local/include/mysql -DHAVE_CONFIG_H -D BUILD_NAGIOS_2X -c - 
o dbhandlers-2x.o dbhandlers.c
In file included from dbhandlers.c:23:
../include/nagios-2x/nagios.h:452: error: syntax error before  
"pthread_mutex_t"
*** Error code 1

Stop in /root/ndoutils-1.4b3/src (line 84 of Makefile).
*** Error code 1

Stop in /root/ndoutils-1.4b3/src (line 52 of Makefile).
*** Error code 1

Stop in /root/ndoutils-1.4b3 (line 13 of Makefile).

Anyone know how I can solve this? Thanks.
-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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[Nagios-users] NDOUtils 1.4b4 OpenBSD build issue

[Israel Brewster]

Ok, I have now attempted to build ndoutils 1.4b4 on a RHEL 4 box,  
only to get the following error:

gcc -O0 -g -DHAVE_CONFIG_H  -D BUILD_NAGIOS_2X -o ndo2db-2x ndo2db.c  
dbhandlers-2x.o io.o utils.o db.o  -L/usr/lib/mysql -lz  -lnsl - 
lmysqlclient
utils.o(.text+0x14e): In function `ndo_dbuf_strcat':
/root/ndoutils-1.4b4/src/utils.c:67: undefined reference to `ceil'
collect2: ld returned 1 exit status
make[2]: *** [ndo2db-2x] Error 1
make[2]: Leaving directory `/root/ndoutils-1.4b4/src'
make[1]: *** [ndo2db] Error 2
make[1]: Leaving directory `/root/ndoutils-1.4b4/src'

Not that building it on the RHEL box would help with the OpenBSD  
build, mind you, but at least it would show me that the problem isn't  
in the package. To make things more interesting, if I try building  
ndoutils 1.4b3 on the RHEL box, it builds just fine. Neither one will  
build on my OpenBSD box however. Are there any other utilities that  
perform the same function as ndoutils perhaps? Or anywhere else that  
I can ask to get a solution? My primary goal here is to be able to  
use Nagvis, which, to the best of my knowledge, requires this  
utility. So any help that can be provided in getting this working  
would be appreciated. Thanks!

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
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Re: [Nagios-users] NDOUtils 1.4b4 OpenBSD build issue

[Israel Brewster]

Thanks. That patch is what I needed. I had already gotten around the  
first two steps by modifying the config.h file that the configure  
script generated to point to the correct location. The patch fixed  
the compile issues I was having. Thanks!

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


On Aug 31, 2007, at 6:13 AM, soul shepard wrote:

> Hi Israel 
>
> i had the saem problems, but was able to successful build the the  
> source.
>
> what i have done ( a bit a dirty quick work arround, but it works) :-)
>
> - added the /usr/local/lib/mysql to the rc.conf
> - copied the /usr/local/include/mysql /usr/local/mysql
> - downloaded the ndoutils-1.4b5.tar.gz into /install
> - extracted it to /install/ndoutils-1.4b5 and /intall/ 
> ndoutils-1.4b5-openbsd
> - downloaded the patch file from http://www.kernel-panic.it/openbsd/ 
> nagios/ndo-openbsd.patch
> - changed all the ndoutils-1.4b3 to ndoutils-1.4b5 in the file
> - ran from /install "patch -p0 ndo-openbsd.patch.new"
> - compiled ndo with the following parameters
> - ./configure --disable-pgsql --enable-mysql --with-mysql-lib=/usr/ 
> local/lib --with-mysql-inc=/usr/local/include
>
> Soul
>
> ---
> This thread is located in the archive at this URL:
> http://www.nagiosexchange.org/nagios-users.34.0.html? 
> &tx_maillisttofaq_pi1[showUid]=3865
>   
>
> -- 
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[Nagios-users] check_icmp oddness

[Israel Brewster]

I am showing some odd behavior with the check_icmp plugin. I am using  
it to monitor a number of stations around the state, and for the most  
part it appears to be working properly. However, with four of these  
stations, check_icmp is showing consistently 60% loss-even though the  
check_ping plugin shows them as fine, and just running a straight  
ping on these sites also shows no packet loss. The only difference  
between these sites and other sites we are monitoring is that they  
are running linksys RV082 routers, while other sites are running  
different model linksys routers. Would anyone be able to explain why  
I am seeing this sort of behavior? Thanks.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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[Nagios-users] Host searching

[Israel Brewster]

Is there a way to search for a host in Nagios? For example, I have a  
number of hosts set up named freenasxxx, where xxx is the three- 
letter designator for the location. I would like to be able to type  
freenas and get a list of all of them. Or if I named one xxx-freenas  
for some reason, but don't remember that, I would like to be able to  
do the same thing and get that one as well. The "show host" box in  
the default sidebar only shows the first result for a partial match,  
which is almost useless. I did find < http://www.nagiosexchange.org/ 
Misc.36.0.html?&tx_netnagext_pi1[p_view]=553 >, which almost works,  
but has the problem of inserting two tabs before the hostname when  
you choose one of the options, which makes the search return no  
results. You can delete the tabs, of course, but  this brings up the  
choice list again with the first item selected, so when you hit enter  
you get the tabs back. It also shows each host twice for some reason  
(I'm using the php script version). Any suggestions would be  
appreciated. Thanks!

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Host searching

[Israel Brewster]

On Oct 4, 2007, at 10:56 PM, hindrek murdsalu wrote:

> Hey,
>
> I gather the 'freenasxxx' servers are somehow connected to each other
> (they're in same farm or provide same services), if so you could just
> define a hostgroup named 'freenas servers' or whichever name you  
> desire
> and add the servers as members to it so you'd be able to list them all
> in 1 window.
> This, of course, isn't a solution to search rather than being an
> alternative.
>
>
> Hindrek
>
>

Thanks for the response. Yeah, with that example a hostgroup could be  
a relatively adequate solution. I'll have to consider it further for  
organizational sake, if nothing else. the problem though is that this  
is only one example of where I would want a real search, and others  
may not work as well with this solution. I can't count the number of  
times I have wanted to get the IP for a given device, but don't  
remember exactly what I named it (such as freenasbrw or brw-freenas)  
or else have some other device with a similar name that comes up  
first. Or, perhaps for a better example, I know I have a printer out  
in Nome, but I can't remember if that was the xerox F12 or M15. To  
work with the hostgroup solution, I would need to have that in a  
"Nome" hostgroup. But I would also want it in a "printers" host group  
for logic sake, and perhaps a "F12" or "M15" hostgroup as well, for  
situations when I want to see where in the network I have a given  
type of printer. Can I put things in multiple host groups? I'll have  
to look into that. And no, with about a dozen different locations  
around the state, and probably at least as many different types of  
printers around the company, I'm not quite yet to the point where I  
can remember them all off the top of my head :)
---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
-------
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of  
> Israel
> Brewster
> Sent: 5. oktoober 2007. a. 0:00
> To: Nagios Users mailinglist
> Subject: [Nagios-users] Host searching
>
> Is there a way to search for a host in Nagios? For example, I have a
> number of hosts set up named freenasxxx, where xxx is the three-
> letter designator for the location. I would like to be able to type
> freenas and get a list of all of them. Or if I named one xxx-freenas
> for some reason, but don't remember that, I would like to be able to
> do the same thing and get that one as well. The "show host" box in
> the default sidebar only shows the first result for a partial match,
> which is almost useless. I did find < http://www.nagiosexchange.org/
> Misc.36.0.html?&tx_netnagext_pi1[p_view]=553 >, which almost works,
> but has the problem of inserting two tabs before the hostname when
> you choose one of the options, which makes the search return no
> results. You can delete the tabs, of course, but  this brings up the
> choice list again with the first item selected, so when you hit enter
> you get the tabs back. It also shows each host twice for some reason
> (I'm using the php script version). Any suggestions would be
> appreciated. Thanks!
>
> ---
> Israel Brewster
> Computer Support Technician
> Frontier Flying Service Inc.
> 5245 Airport Industrial Rd
> Fairbanks, AK 99709
> (907) 450-7250 x293
> ---
>
>
>
> -- 
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[Nagios-users] Status display colors

[Israel Brewster]

Is there any way to change the colors generated by status.cgi? My  
boss is complaining that it is really hard for him to read the dark  
blue hostname on the dark red background you get when a host is down.  
Thanks!

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Monitoring Nagios

[Israel Brewster]

On Nov 28, 2007, at 4:52 AM, Mohr James wrote:

> Hi All!
>
> We had a problem the other day where the nagios process died and no  
> one
> noticed it for over 30 minutes. Therefore, I was thinking about ways  
> to
> monitor Nagios itself. One simply way would be a cronjob that checks  
> if
> the nagios process is running and then uses yaps or something to  
> send an
> SMS. But what about cases where the nagios process is running, but for
> whatever reason the messages are not being processed.
>
> I was thinking about setting up a service that is triggered by a  
> cronjob
> and then sends a notification. This notification writes a flag file  
> and
> every X minutes a cron job checks the age of the flag file. If the  
> flag
> file is too old, it sends an SMS via yaps.
>
> Rather than re-invent the wheel, I was wondering if other people had
> already implemented something similar.
>
> Regards,
>
> Jim Mohr

For a simple solution that requires no additional software, I just use  
the check_nagios plugin that comes with nagios, and run it from a  
script/cron job. This not only checks to see if nagios has crashed,  
but also checks the age of the status file. If a problem is detected  
with either (and I have had both situations) the script then first  
attempts to restart nagios via a full stop/start, then checks again  
and e-mails me with the result. So far, this has always just been a  
status notification saying that it had restarted nagios, as the stop/ 
start has worked as expected, but if for some reason that should fail  
it would notify me of this fact as well.
---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


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[Nagios-users] Delay notification/escalations

[Israel Brewster]

I need some clarification of how nagios will respond to something I am  
trying to do. I have a number of hosts I am monitoring that I want  
nagios to note immediately (well, almost) if they go down, but I don't  
want to receive a notification unless they stay in a hard down state  
for more than, say, 5 minutes. Now if I understand things correctly, I  
can accomplish this using host escalations by setting the notification  
options on the host to n (none) and the notification interval to 5  
minutes, and then setting up a host escalation with a  
first_notification directive of 2. Does this sound correct?

I have a couple of concerns about this setup. From my reading of the  
documentation (correct me if I am wrong), it sounds as though  
escalations only change the contact_groups and notification_periods of  
the notifications. If I have the notification options of the host set  
to n, does the escalation override this? If not, and I set the host  
notification options to, say, d,r, then how do I prevent a  
notification being sent out immediately when the host goes down? Does  
the notification_interval directive even have any effect if the  
notification_options are set to none? The last thing I want to do is  
try making this change, and end up not being notified at all when a  
host goes down for an extended period of time. Thanks.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Delay notification/escalations

[Israel Brewster]

On Dec 15, 2007, at 12:24 AM, Andreas Ericsson wrote:

> Israel Brewster wrote:
>> I need some clarification of how nagios will respond to something I  
>> am  trying to do. I have a number of hosts I am monitoring that I  
>> want  nagios to note immediately (well, almost) if they go down,  
>> but I don't  want to receive a notification unless they stay in a  
>> hard down state  for more than, say, 5 minutes. Now if I understand  
>> things correctly, I  can accomplish this using host escalations by  
>> setting the notification  options on the host to n (none) and the  
>> notification interval to 5  minutes, and then setting up a host  
>> escalation with a  first_notification directive of 2. Does this  
>> sound correct?
>> I have a couple of concerns about this setup. From my reading of  
>> the  documentation (correct me if I am wrong), it sounds as though   
>> escalations only change the contact_groups and notification_periods  
>> of  the notifications. If I have the notification options of the  
>> host set  to n, does the escalation override this? If not, and I  
>> set the host  notification options to, say, d,r, then how do I  
>> prevent a  notification being sent out immediately when the host  
>> goes down? Does  the notification_interval directive even have any  
>> effect if the  notification_options are set to none? The last thing  
>> I want to do is  try making this change, and end up not being  
>> notified at all when a  host goes down for an extended period of  
>> time. Thanks.
>
> You should be able to use "first_notification_delay" for this. I'm not
> sure which version it's included in, but 3.x will almost certainly  
> have
> it.
>

Thanks for the info. That sounds like exactly what I am looking for,  
but from what I can tell it is not available in version 2.7 (which is  
what I am running) - at any rate, I couldn't find it in the  
documentation. I plan on moving to 3 as soon after it is released as I  
can manage (and my boss allows), but for now I need a solution that  
works with 2.7

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

> -- 
> Andreas Ericsson   [EMAIL PROTECTED]
> OP5 AB www.op5.se
> Tel: +46 8-230225  Fax: +46 8-230231


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[Nagios-users] Host check clarification

[Israel Brewster]

I need some clarification as to how exactly the host check determines  
if a host is down. In the default configuration, the check-host-alive  
command sends a single ping, which can be considered (obviously)  
either ok, warning, or critical. The host then has a  
max_check_attempts setting of three, which if I understand things  
correctly means it will try this check twice more, in rapid  
succession, before putting the host into a hard state. My question is  
what is the logic if one of these three checks returns a different  
state than the other two? Say, for example, the first ping never makes  
it back, therefore returning a critical state, but the second and  
third come back, giving OK states? is the host then considered up or  
down? Thanks!

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Host check clarification

[Israel Brewster]

On Jan 14, 2008, at 1:27 PM, Sloane, Robert Raymond wrote:

> To start off with, there isn't any WARNING state for hosts, just UP,
> DOWN, PENDING or UNREACHABLE.  Assume the host is OK to start off  
> with.
> If the host check returns DOWN then then the parent of the host will  
> be
> check to see if it is DOWN.  If the parent is OK, then the host is
> marked as DOWN in a soft state, and if the parent is DOWN, then the  
> host
> is UNREACHABLE. The host check will be repeated in rapid succession
> until the host is either UP or the retry count is reached.  If any  
> check
> returns the host as UP, then Nagios marks the host UP and goes to the
> next thing.  If the retry count is reached, then the host is marked as
> DOWN in a hard state and the notification process is started.
>
> Does that help?

Yep, that answers it. Thanks!


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
> -- 
> Bob Sloane, University of Kansas Computer Center, Lawrence, KS, 66045
> Email:[EMAIL PROTECTED] http://www.ku.edu/home/sloane Phone:(785)864-0444
>
>
>> -Original Message-
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf
>> Of Israel Brewster
>> Sent: Monday, January 14, 2008 4:18 PM
>> To: Nagios Users mailinglist
>> Subject: [Nagios-users] Host check clarification
>>
>>
>> I need some clarification as to how exactly the host check
>> determines
>> if a host is down. In the default configuration, the
>> check-host-alive
>> command sends a single ping, which can be considered (obviously)
>> either ok, warning, or critical. The host then has a
>> max_check_attempts setting of three, which if I understand things
>> correctly means it will try this check twice more, in rapid
>> succession, before putting the host into a hard state. My
>> question is
>> what is the logic if one of these three checks returns a different
>> state than the other two? Say, for example, the first ping
>> never makes
>> it back, therefore returning a critical state, but the second and
>> third come back, giving OK states? is the host then considered up or
>> down? Thanks!
>>
>> ---
>> Israel Brewster
>> Computer Support Technician
>> Frontier Flying Service Inc.
>> 5245 Airport Industrial Rd
>> Fairbanks, AK 99709
>> (907) 450-7250 x293
>> ---
>>
>>
>>
>> --
>> ---
>> Check out the new SourceForge.net Marketplace.
>> It's the best place to buy or sell services for
>> just about anything Open Source.
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> et/marketplace
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Re: [Nagios-users] check_rrdtraf

[Israel Brewster]

On Feb 13, 2008, at 6:34 AM, Marc Powell wrote:
>> -Original Message-
>> From: [EMAIL PROTECTED] [mailto:nagios- 
>> users-
>> [EMAIL PROTECTED] On Behalf Of Pili Muñoz Gargallo
>> Sent: Wednesday, February 13, 2008 7:23 AM
>> To: nagios-users@lists.sourceforge.net
>> Subject: [Nagios-users] check_rrdtraf
>>
>> Hi
>> i am trying to measure bandwith using check_rrd
>
> When asking about plugins that don't come with the distribution it's  
> helpful to include where you obtained the plugin so everyone knows  
> which check_rrd (or check_rrdtraf as the case may be) you're talking  
> about.

That would be (partly) my plugin, obtained from Nagiosexchange.org,  
most likely :)

>> i use  the command:
>> $USER1$/check_rrdtraf -f ./var/www/html/cfg/$HOSTADRESS$_1.rrd  -l  
>> b -vv -
>> c $ARG1$ -w $ARG2$
>
> You meant $HOSTADDRESS$ here, right?

And did you really want that period before the /var ?
>
>
>> and in the service i give it the next arguments:
>> !300,300!500,500
>>
>> i have read about it several times, and it doesn't work how i espect:
>> it returns me an OK value, but it doesn't tell me the present BW...
>> Am i missing something?
>>
>
> When you run the above command as the nagios user from the command  
> line, does the first line of output match what you're seeing in the  
> GUI? I expect it starts with the word 'Using'. What is the -vv flag  
> causing to happen when the program is run (hint, run check_rrdtraf -- 
> help to find out)?

The -vv is an issue, although there could be a couple of others (see  
previous comments about the formating of the file string in the  
command). As that flag gives a lot of debugging output, and nagios  
only displays the first line of output, I wouldn't expect it to show  
the traffic values with this switch in there. What I would expect  
nagios to be showing is something along the lines of "Using RRD File: / 
var/www/html/cfg/$HOSTADRESS$_1.rrd" (I think that's the first line of  
debugging output I put in there), with $HOSTADDRESS$ replaced  with  
the applicable value. Try without the -vv and see what happens.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
> --
> Marc
>
>
>
> -
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> reporting any issue.
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Re: [Nagios-users] mrtgtraf help needed

[Israel Brewster]

On Feb 12, 2008, at 8:26 PM, John King wrote:

> Hi list
>
> ...[Hi All, I have the latest versions of Nagios, the plugins, net- 
> snmp, net-snmp-utils all installed on a fedora 5 box. I've setup the  
> monitoring of my windows and linux machines and all is well with  
> those. I have or am trying to setup monitoing of my cisco switches  
> and while I am getting gree lights on the snmp and ping tests, none  
> of the bandwith (mrtg) checks are working. Error msg is  
> "check_mrtgtraf: Unable to open MRTG log file "
>
> Any help would be greatly appreciated]...

Well, the obvious questions: is MRTG set up and functioning? You  
didn't mention installing it. If it is, then what is the command  
definition you have for the bandwidth checks? Do the log files they  
point to actually exist? From the error you are getting, if MRTG is  
installed an functioning, then the most likely problem is that your  
command definitions are looking in the wrong place for the MRTG log  
files.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
>
> - John King (jkingsol1)
>
> ---
> The mailing list archive is found here:
> http://www.nagiosexchange.org/nagios-users.34.0.html
>   
>
> -
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
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Re: [Nagios-users] check_rrdtraf

[Israel Brewster]

On Feb 14, 2008, at 1:48 PM, Pili Muñoz Gargallo wrote:


hi all,
thanks for the help. I have been trying several things that you told  
me.
I'll give more information. I am monitoring bandwith with MRTG and  
storing datas in rrdtool format.

If i run command from command line is

./check_rrdtraf -f ./var/www/html/cfg/62.81.189.118_1.rrd  -l B  -c  
300,300 -w 500,500


./var/www/html/cfg/62.81.189.118_1.rrd does not exist.

I am graphing with routers2.cgi and it receives values, and if i do :

 rrdtool fetch /var/www/html/cfg/62.81.189.118_1.rrd AVERAGE
.
.
.

1203025200: 1.3963531752e+05 8.2446477796e+04
1203025500: 1.3719540269e+05 1.0068914358e+05
1203025800: 1.3673972419e+05 1.0818787703e+05
1203026100: 1.3729848910e+05 1.1104579469e+05
1203026400: 1.3708077389e+05 1.1129381874e+05
1203026700: 1.3590177194e+05 1.1081213980e+05
1203027000: 3.1652589163e+05 2.5986265329e+05
1203027300: 3.8436060720e+05 3.1651678017e+05
1203027600: 1.4309192557e+05 1.1708320591e+05
1203027900: nan nan
1203028200: nan nan

i see it is storing values...
what is wrong? I had read check_rrdtraf help and i have included -l  
B option to indicate that data are bits...but it is still not working


As Marc pointed out in his response, having the ./var instead of /var  
in the path to the .rrd file is wrong. you want /var WITHOUT the  
period. Also, note that the -l switch only affects the display of the  
output. It is not needed in normal operation, unless you really want  
to see the output as bits rather than Kb, Mb, etc. The plugin will  
auto-choose the best option based on the data if you leave this switch  
out. But the main problem is the period before that slash. Remove it,  
and it should work.


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


I obtain now:
OK - Current BW in: bps Out: bps

any more ideas?
Thank you again for your patience!!!

Pili


2008/2/13, Israel Brewster <[EMAIL PROTECTED]>:
On Feb 13, 2008, at 6:34 AM, Marc Powell wrote:
>> -Original Message-
>> From: [EMAIL PROTECTED] [mailto:nagios-
>> users-
>> [EMAIL PROTECTED] On Behalf Of Pili Muñoz Gargallo
>> Sent: Wednesday, February 13, 2008 7:23 AM
>> To: nagios-users@lists.sourceforge.net
>> Subject: [Nagios-users] check_rrdtraf
>>
>> Hi
>> i am trying to measure bandwith using check_rrd
>
> When asking about plugins that don't come with the distribution it's
> helpful to include where you obtained the plugin so everyone knows
> which check_rrd (or check_rrdtraf as the case may be) you're talking
> about.


That would be (partly) my plugin, obtained from Nagiosexchange.org,
most likely :)


>> i use  the command:
>> $USER1$/check_rrdtraf -f ./var/www/html/cfg/$HOSTADRESS$_1.rrd  -l
>> b -vv -
>> c $ARG1$ -w $ARG2$
>
> You meant $HOSTADDRESS$ here, right?


And did you really want that period before the /var ?

>
>
>> and in the service i give it the next arguments:
>> !300,300!500,500
>>
>> i have read about it several times, and it doesn't work how i  
espect:

>> it returns me an OK value, but it doesn't tell me the present BW...
>> Am i missing something?
>>
>
> When you run the above command as the nagios user from the command
> line, does the first line of output match what you're seeing in the
> GUI? I expect it starts with the word 'Using'. What is the -vv flag
> causing to happen when the program is run (hint, run check_rrdtraf  
--

> help to find out)?


The -vv is an issue, although there could be a couple of others (see
previous comments about the formating of the file string in the
command). As that flag gives a lot of debugging output, and nagios
only displays the first line of output, I wouldn't expect it to show
the traffic values with this switch in there. What I would expect
nagios to be showing is something along the lines of "Using RRD  
File: /

var/www/html/cfg/$HOSTADRESS$_1.rrd" (I think that's the first line of
debugging output I put in there), with $HOSTADDRESS$ replaced  with
the applicable value. Try without the -vv and see what happens.

---

Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
>
> --
> Marc
>
>
>
>  
-

> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
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Re: [Nagios-users] check_rrdtraf

[Israel Brewster]

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


On Feb 15, 2008, at 2:11 AM, Pili Muñoz Gargallo wrote:


Of course yes, PEBKAC...
i have a new issue:
if i execute the same command from command line  i obtain:
 ./check_rrdtraf -f /var/www/html/cfg/62.81.189.118_1.rrd -c  
500,500 -w 300,300


./check_rrdtraf: line 248: [: 8,00: integer expression expected
./check_rrdtraf: line 251: [: 8,00: integer expression expected
./check_rrdtraf: line 254: [: 8,00: integer expression expected
./check_rrdtraf: line 263: [: 32,00: integer expression expected
./check_rrdtraf: line 266: [: 32,00: integer expression expected
./check_rrdtraf: line 269: [: 32,00: integer expression expected
(standard_in) 1: parse error
(standard_in) 1: parse error
(standard_in) 1: parse error
(standard_in) 1: parse error
OK - Current BW in: Gbps Out: Gbps(standard_in) 1: parse error
(standard_in) 1: parse error
|in=Gb/s;300;500 (standard_in) 1: parse error
(standard_in) 1: parse error
out=Gb/s;300;500

so Is there another problem or it is just me?


Ok, here's where that -vv switch can come in handy. Try again from the  
command line with -vv, and send the output you get. That should help  
me with the debugging. As it is, the only thing I would note is to  
wonder if you really want the critical and warning values to be 3 Gbps  
and 5Gbps. It's not completely unreasonable, of course, depending on  
what you are monitoring (I think there are devices that can get multi- 
gigabit speeds), but most devices never get anywhere near that kind of  
traffic. Regardless, that shouldn't cause the first errors you are  
seeing, as the lines referenced are just seeing how big the input  
values are. Course, if you ARE getting gigabit speeds, I suppose it's  
possible i'm getting an overflow somewhere- i've never tested with  
that level traffic (as I don't have anything that generates that kind  
of traffic).




Thanks again, and forgive me for these questions: Like i used to  
say, i am a student and i am newbie in linux, LAMP servers, Nagios,  
MRTG, RRDTool. and everything you imagine..


Cheers

Pili

2008/2/15, Israel Brewster <[EMAIL PROTECTED]>:



On Feb 14, 2008, at 1:48 PM, Pili Muñoz Gargallo wrote:


hi all,
thanks for the help. I have been trying several things that you  
told me.
I'll give more information. I am monitoring bandwith with MRTG and  
storing datas in rrdtool format.

If i run command from command line is

./check_rrdtraf -f ./var/www/html/cfg/62.81.189.118_1.rrd  -l B  -c  
300,300 -w 500,500


./var/www/html/cfg/62.81.189.118_1.rrd does not exist.

I am graphing with routers2.cgi and it receives values, and if i do :

 rrdtool fetch /var/www/html/cfg/62.81.189.118_1.rrd AVERAGE
.
.
.

1203025200: 1.3963531752e+05 8.2446477796e+04
1203025500: 1.3719540269e+05 1.0068914358e+05
1203025800: 1.3673972419e+05 1.0818787703e+05
1203026100: 1.3729848910e+05 1.1104579469e+05
1203026400: 1.3708077389e+05 1.1129381874e+05
1203026700: 1.3590177194e+05 1.1081213980e+05
1203027000: 3.1652589163e+05 2.5986265329e+05
1203027300: 3.8436060720e+05 3.1651678017e+05
1203027600: 1.4309192557e+05 1.1708320591e+05
1203027900: nan nan
1203028200: nan nan

i see it is storing values...
what is wrong? I had read check_rrdtraf help and i have included -l  
B option to indicate that data are bits...but it is still not working


As Marc pointed out in his response, having the ./var instead of / 
var in the path to the .rrd file is wrong. you want /var WITHOUT the  
period. Also, note that the -l switch only affects the display of  
the output. It is not needed in normal operation, unless you really  
want to see the output as bits rather than Kb, Mb, etc. The plugin  
will auto-choose the best option based on the data if you leave this  
switch out. But the main problem is the period before that slash.  
Remove it, and it should work.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


I obtain now:
OK - Current BW in: bps Out: bps

any more ideas?
Thank you again for your patience!!!

Pili


2008/2/13, Israel Brewster <[EMAIL PROTECTED]>:
On Feb 13, 2008, at 6:34 AM, Marc Powell wrote:
>> -Original Message-
>> From: [EMAIL PROTECTED] [mailto:nagios-
>> users-
>> [EMAIL PROTECTED] On Behalf Of Pili Muñoz Gargallo
>> Sent: Wednesday, February 13, 2008 7:23 AM
>> To: nagios-users@lists.sourceforge.net
>> Subject: [Nagios-users] check_rrdtraf
>>
>> Hi
>> i am trying to measure bandwith 

Re: [Nagios-users] check_rrdtraf

[Israel Brewster]

On Feb 17, 2008, at 8:57 AM, Marc Powell wrote:

>
> On Feb 16, 2008, at 4:32 AM, Pili Muñoz Gargallo wrote:
>
>> Hi Israel,
>> Well that is what i get
>>
>> ./check_rrdtraf -f /var/www/html/cfg/62.81.189.117_1.rrd -c
>> 5000,5000 -w 3000,3000 -vv
>> Using RRD file: /var/www/html/cfg/62.81.189.117_1.rrd
>> Input warning level(kb/s): 3000
>> Output warning level(kb/s): 3000
>> Input critical level (kb/s): 5000
>> Output critical level (kb/s): 5000
>> Fetching data with command: rrdtool fetch /var/www/html/cfg/
>> 62.81.189.117_1.rrd AVERAGE -s-10minutes | grep -vi "nan"
>> RRD File Data:
>>ds0 ds1
>>
>> 1203155100: 4.4908022742e+04 6.8003888963e+04
>> Raw Input Traffic Value (b/s): 32,00
>> Raw Output Traffic Value (b/s): 48,00
>> Decimal Input Traffic Value (b/s): 32,00
>> Decimal Output Traffic Value (b/s): 48,00
>> ./check_rrdtraf: line 248: [: 32,00: integer expression expected
>> ./check_rrdtraf: line 251: [: 32,00: integer expression expected
>> ./check_rrdtraf: line 254: [: 32,00: integer expression expected
>> ./check_rrdtraf: line 263: [: 48,00: integer expression expected
>> ./check_rrdtraf: line 266: [: 48,00: integer expression expected
>> ./check_rrdtraf: line 269: [: 48,00: integer expression expected
>
> Seems like a regional number-formatting issue. Your OS LC_NUMERIC
> settings specify a number format that uses ',' in place of '.' and the
> script (or perl?) isn't internationalized to understand that. Would
> that be the case? I'm not too familiar with i18n so can't be of much
> help.

Ok, yeah, that would make sense. It is a shell script, and no, it  
isn't internationalized- partly because I didn't think of that when  
writing it, partly because I'm not entirely sure how. I suppose I  
could just do a simple string search and replace on the values to  
replace any commas with periods, but I don't really know if this would  
be the best or right way of doing it. Any of the more experienced  
programers out there have any suggestions?

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
>
> --
> Marc
>
>
> -
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
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> reporting any issue.
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[Nagios-users] Dual-port monitoring

[Israel Brewster]

I have a number of devices on my network that have dual-interfaces  
such that either one can go down, but the device itself, and all the  
devices behind it (in the case of a router) is still up and reachable.  
What is the best way to set up monitoring of such devices, considering  
that as far as I can tell you can only assign one IP per host? I have  
looked at check_cluster, but if that is the best method I am unsure of  
the best way of implementing it. Things I have thought of:

1) Create two "dummy" hosts which are the two ports, and then a third  
host with a check command of check_cluster that looks at those two  
dummy hosts. This seems overly complicated, not to mention cluttering  
up my configs and nagios interface with three hosts where there is  
really only one.

2) Simply monitor the two ports as two separate hosts. This could  
work, but again clutters things up with multiple hosts where only one  
exists, and adds the requirement of multi-parenting any child devices,  
which can get ugly, especially in a graphical representation of the  
network.

I have read http://nagios.sourceforge.net/docs/2_0/clusters.html, but  
that doesn't seem to apply, at least not directly, in that it refers  
either to situations where you have redundant services on one or more  
hosts (perhaps that is sort of what I want?) or to where you have  
multiple redundant hosts, but not to the situation where you have one  
host offering one service over two ports. The main problem with that  
doc, though, is that the cluster is always a service, which wouldn't  
work in my situation, as the host itself is a cluster. Any thoughts?  
Thanks.
---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Dual-port monitoring

[Israel Brewster]

On Mar 17, 2008, at 9:03 AM, Gary Every wrote:


In your services file:

define service {
  use   generic-service
  name  Ping
  host_namemulti_homed_server_name
  service_description   Ping Second IFace
  check_command check_ping2!10.1.1.100!3000,10%!1,20%
  contact_groupsUnix
}

for your checkcommands:

define command{
command_namecheck_ping2
command_line/usr/lib/nagios/plugins/check_ping -H $ARG1$  
-w $ARG2$ -c $ARG3$ -p 5

}


check_ping2 adds the first ARG as the ip address that you want  
monitored - This means that the HOSTNAME will remain the same, but a  
diff interface will be checked.


Thanks for the response. If I understand your reply correctly, though,  
this just adds a second service for the host, with a separate IP from  
that specified in the host directive. it does not, however, allow me  
to monitor the HOST on two separate IP's, taking into account that if  
either interface is up, the host is up. Perhaps my question wasn't  
quite clear enough. Take, for example, the following situation:


host a has two network interfaces: a primary with an IP of 10.1.1.100  
and a secondary with an IP of 10.1.1.101.

Host a can be reached through either interface.
Host a has its host address defined as the primary of 10.1.1.100, with  
a check command of check_ping
Host a also has a service defined as above, checking the secondary  
interface (10.1.1.101)


If the secondary interface goes down, then everything is fine: nagios  
notices that the service for the secondary interface is critical,  
checks the host on the primary, sees that as being fine, and sends an  
alert about the service (secondary port), while leaving the host in an  
OK state. This is exactly as it should be.


However, now imagine that the primary interface goes down instead.  
Nagios attempts to check the host on the primary interface, which also  
fails (sicne the interface is down), and therefore nagios alerts that  
the host is down, and any devices behind it are unreachable. This,  
however, is incorrect-since the secondary interface is still connected  
and fully functional, the host and everything behind it is still up  
and reachable. What I want is a situation where Nagios will send me an  
alert if either interface of a host is down, but only consider the  
host to be down if BOTH interfaces on the host are down. As I  
explained in my original posting, I have considered a couple of  
options that may accomplish this, but neither seems as elegant as I  
would like. Thanks for any thoughts!


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



On Mon, Mar 17, 2008 at 9:38 AM, Israel Brewster <[EMAIL PROTECTED] 
> wrote:

I have a number of devices on my network that have dual-interfaces
such that either one can go down, but the device itself, and all the
devices behind it (in the case of a router) is still up and reachable.
What is the best way to set up monitoring of such devices, considering
that as far as I can tell you can only assign one IP per host? I have
looked at check_cluster, but if that is the best method I am unsure of
the best way of implementing it. Things I have thought of:

1) Create two "dummy" hosts which are the two ports, and then a third
host with a check command of check_cluster that looks at those two
dummy hosts. This seems overly complicated, not to mention cluttering
up my configs and nagios interface with three hosts where there is
really only one.

2) Simply monitor the two ports as two separate hosts. This could
work, but again clutters things up with multiple hosts where only one
exists, and adds the requirement of multi-parenting any child devices,
which can get ugly, especially in a graphical representation of the
network.

I have read http://nagios.sourceforge.net/docs/2_0/clusters.html, but
that doesn't seem to apply, at least not directly, in that it refers
either to situations where you have redundant services on one or more
hosts (perhaps that is sort of what I want?) or to where you have
multiple redundant hosts, but not to the situation where you have one
host offering one service over two ports. The main problem with that
doc, though, is that the cluster is always a service, which wouldn't
work in my situation, as the host itself is a cluster. Any thoughts?
Thanks.
---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Stud

[Nagios-users] Unwanted re-notifications

[Israel Brewster]

I have a service that keeps sending me notifications of the fact that  
it is critical every half hour or so, even though the notification  
interval for the service is set to zero. In this particular case, the  
port that is being monitored is temporarily disabled, so there is no  
chance that the service is coming up briefly and then going back down,  
thus triggering the notification. Looking at the nagios page for the  
service, I notice, however that it says "Current Notification Number:  
7", which would imply (to me at least) that re-notification is  
enabled. What am I missing here? how can I get it to stop sending me  
messages? I can, of course, acknowledge the down state, or put it in  
scheduled downtime, but I don't want it to send more than the initial  
notification regardless. Thanks!

The service definition is as follows:

define service{
 use generic service
 host_name   ffsbrw-rtr00
 service_description WAN 2
 notification_interval   0
 check_command   check_custom_ping!xx.xxx.xxx.xxx! 
1200.0,20%!1600.0,50%
 normal_check_interval   1
 max_check_attempts  5
 servicegroups   Satelite Services
 notification_optionsu,c,r
 }

and generic service (which this inherits from) as such (yes, much came  
from the sample files):

define service{
 namegeneric service ; The 'name'  
of this service template
 active_checks_enabled   1   ; Active service  
checks are enabled
 passive_checks_enabled  1   ; Passive service  
checks are enabled/accepted
 parallelize_check   1   ; Active service  
checks should be parallelized (disabling this can lead to major  
performance problems)
 obsess_over_service 1   ; We should obsess  
over this service (if necessary)
 check_freshness 0   ; Default is to NOT  
check service 'freshness'
 notifications_enabled   1   ; Service  
notifications are not enabled
 event_handler_enabled   1   ; Service event  
handler is enabled
 flap_detection_enabled  1   ; Flap detection is  
enabled
 failure_prediction_enabled  1   ; Failure prediction  
is enabled
 process_perf_data   1   ; Process performance  
data
 retain_status_information   1   ; Retain status  
information across program restarts
 retain_nonstatus_information1   ; Retain non-status  
information across program restarts
 is_volatile 0
 check_period24x7
 max_check_attempts  3
 normal_check_interval   5
 retry_check_interval1
 contact_groups  admins2
 notification_optionsn
 notification_interval   0
 notification_period 24x7
 servicegroups   z Ping Services
 register0   ; DONT REGISTER THIS  
DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
 }


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
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Re: [Nagios-users] Dual-port monitoring

[Israel Brewster]

On Mar 17, 2008, at 11:03 AM, Cook, Garry wrote:

Do you have the ability to use loopback addresses on these devices?  
If so, that would be used as the host address, and then you could  
use other checks for the interfaces. For instance, all of my Cisco  
routers have a loopback setup. I then use ‘check_ifstatus’ to check  
the individual interfaces.


Thanks,
Garry



I assume the check_ifstatus for the interfaces are services associated  
with the host? If so, then what do you use for your host check? How do  
you get the host to show as down if all the interfaces are down, but  
not if one or both (or more, if you have more than two, although that  
is not the case with any of our devices) are up?


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
] On Behalf Of Israel Brewster

Sent: Monday, March 17, 2008 12:41 PM
To: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 9:03 AM, Gary Every wrote:


In your services file:

define service {
  use   generic-service
  name  Ping
  host_namemulti_homed_server_name
  service_description   Ping Second IFace
  check_command check_ping2!10.1.1.100!3000,10%!1,20%
  contact_groupsUnix
}

for your checkcommands:

define command{
command_namecheck_ping2
command_line/usr/lib/nagios/plugins/check_ping -H $ARG1$  
-w $ARG2$ -c $ARG3$ -p 5

}


check_ping2 adds the first ARG as the ip address that you want  
monitored - This means that the HOSTNAME will remain the same, but a  
diff interface will be checked.



Thanks for the response. If I understand your reply correctly,  
though, this just adds a second service for the host, with a  
separate IP from that specified in the host directive. it does not,  
however, allow me to monitor the HOST on two separate IP's, taking  
into account that if either interface is up, the host is up. Perhaps  
my question wasn't quite clear enough. Take, for example, the  
following situation:


host a has two network interfaces: a primary with an IP of  
10.1.1.100 and a secondary with an IP of 10.1.1.101.

Host a can be reached through either interface.
Host a has its host address defined as the primary of 10.1.1.100,  
with a check command of check_ping
Host a also has a service defined as above, checking the secondary  
interface (10.1.1.101)


If the secondary interface goes down, then everything is fine:  
nagios notices that the service for the secondary interface is  
critical, checks the host on the primary, sees that as being fine,  
and sends an alert about the service (secondary port), while leaving  
the host in an OK state. This is exactly as it should be.


However, now imagine that the primary interface goes down instead.  
Nagios attempts to check the host on the primary interface, which  
also fails (sicne the interface is down), and therefore nagios  
alerts that the host is down, and any devices behind it are  
unreachable. This, however, is incorrect-since the secondary  
interface is still connected and fully functional, the host and  
everything behind it is still up and reachable. What I want is a  
situation where Nagios will send me an alert if either interface of  
a host is down, but only consider the host to be down if BOTH  
interfaces on the host are down. As I explained in my original  
posting, I have considered a couple of options that may accomplish  
this, but neither seems as elegant as I would like. Thanks for any  
thoughts!


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

On Mon, Mar 17, 2008 at 9:38 AM, Israel Brewster <[EMAIL PROTECTED] 
> wrote:

I have a number of devices on my network that have dual-interfaces
such that either one can go down, but the device itself, and all the
devices behind it (in the case of a router) is still up and reachable.
What is the best way to set up monitoring of such devices, considering
that as far as I can tell you can only assign one IP per host? I have
looked at check_cluster, but if that is the best method I am unsure of
the best way of implementing it. Things I have thought of:

1) Create two "dummy" hosts which are the two ports, and then a third
host with a check command of check_cluster that looks at those two
dummy hosts. This seems overly complicated, not to mention cluttering
up my configs and nagios interface with three hosts where there is
really only one.

2) Simply monitor the two ports as two separate hosts. This could
work, but again clutters things up with mul

Re: [Nagios-users] Dual-port monitoring

[Israel Brewster]

On Mar 17, 2008, at 12:00 PM, Marcel wrote:

If you would have a round-robin dns setup to reach that particular  
host, you would be fine tweaking a check_host_alive command with  
high lost percentage, but still reachable. But you will rely on dns  
name resolution to do that.


Right, unfortunately we aren't set up quite that fancy. We simply have  
two seperate DNS entries for the two ports, and when we can't reach  
the device on  one, we go on the other. The dual connections are more  
for outgoing traffic than incoming, such that devices behind the  
device will still have a route to the outside world should one route  
die (load balancing and failover), but nagios is on the outside  
looking in.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



HTH,
Marcel

On Mon, Mar 17, 2008 at 4:45 PM, Israel Brewster <[EMAIL PROTECTED] 
> wrote:

On Mar 17, 2008, at 11:03 AM, Cook, Garry wrote:

Do you have the ability to use loopback addresses on these devices?  
If so, that would be used as the host address, and then you could  
use other checks for the interfaces. For instance, all of my Cisco  
routers have a loopback setup. I then use 'check_ifstatus' to check  
the individual interfaces.


Thanks,
Garry



I assume the check_ifstatus for the interfaces are services  
associated with the host? If so, then what do you use for your host  
check? How do you get the host to show as down if all the interfaces  
are down, but not if one or both (or more, if you have more than  
two, although that is not the case with any of our devices) are up?


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
] On Behalf Of Israel Brewster

Sent: Monday, March 17, 2008 12:41 PM
To: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 9:03 AM, Gary Every wrote:


In your services file:

define service {
  use   generic-service
  name  Ping
  host_namemulti_homed_server_name
  service_description   Ping Second IFace
  check_command check_ping2!10.1.1.100!3000,10%!1,20%
  contact_groupsUnix
}

for your checkcommands:

define command{
command_namecheck_ping2
command_line/usr/lib/nagios/plugins/check_ping -H  
$ARG1$ -w $ARG2$ -c $ARG3$ -p 5

}


check_ping2 adds the first ARG as the ip address that you want  
monitored - This means that the HOSTNAME will remain the same, but  
a diff interface will be checked.



Thanks for the response. If I understand your reply correctly,  
though, this just adds a second service for the host, with a  
separate IP from that specified in the host directive. it does not,  
however, allow me to monitor the HOST on two separate IP's, taking  
into account that if either interface is up, the host is up.  
Perhaps my question wasn't quite clear enough. Take, for example,  
the following situation:


host a has two network interfaces: a primary with an IP of  
10.1.1.100 and a secondary with an IP of 10.1.1.101.

Host a can be reached through either interface.
Host a has its host address defined as the primary of 10.1.1.100,  
with a check command of check_ping
Host a also has a service defined as above, checking the secondary  
interface (10.1.1.101)


If the secondary interface goes down, then everything is fine:  
nagios notices that the service for the secondary interface is  
critical, checks the host on the primary, sees that as being fine,  
and sends an alert about the service (secondary port), while  
leaving the host in an OK state. This is exactly as it should be.


However, now imagine that the primary interface goes down instead.  
Nagios attempts to check the host on the primary interface, which  
also fails (sicne the interface is down), and therefore nagios  
alerts that the host is down, and any devices behind it are  
unreachable. This, however, is incorrect-since the secondary  
interface is still connected and fully functional, the host and  
everything behind it is still up and reachable. What I want is a  
situation where Nagios will send me an alert if either interface of  
a host is down, but only consider the host to be down if BOTH  
interfaces on the host are down. As I explained in my original  
posting, I have considered a couple of options that may accomplish  
this, but neither seems as elegant as I would like. Thanks for any  
thoughts!


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industr

Re: [Nagios-users] Dual-port monitoring

[Israel Brewster]

On Mar 17, 2008, at 12:06 PM, Cook, Garry wrote:

Yes, check_ifstatus is a service associated with the hosts. It  
checks interfaces only. The host check is a check_icmp against the  
host address, which is the loopback. If any of the interfaces are  
down, check_ifstatus will report this, but the host does not show as  
down as long as the loopback responds to a PING, which it will if  
any of the interfaces are up.


Ok, I see what you are saying, and it does sound as though it would  
work as I desire. Unfortunately, for the device in question, it  
doesn't look as though this will be an option, as I don't think I can  
use loopback addresses (primarily Linksys RV082 devices). Thanks anyway.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


Thanks,
Garry

From: Israel Brewster [mailto:[EMAIL PROTECTED]
Sent: Monday, March 17, 2008 1:46 PM
To: Cook, Garry
Cc: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 11:03 AM, Cook, Garry wrote:


Do you have the ability to use loopback addresses on these devices?  
If so, that would be used as the host address, and then you could  
use other checks for the interfaces. For instance, all of my Cisco  
routers have a loopback setup. I then use ‘check_ifstatus’ to check  
the individual interfaces.


Thanks,
Garry


I assume the check_ifstatus for the interfaces are services  
associated with the host? If so, then what do you use for your host  
check? How do you get the host to show as down if all the interfaces  
are down, but not if one or both (or more, if you have more than  
two, although that is not the case with any of our devices) are up?


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
] On Behalf Of Israel Brewster

Sent: Monday, March 17, 2008 12:41 PM
To: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 9:03 AM, Gary Every wrote:



In your services file:

define service {
  use   generic-service
  name  Ping
  host_namemulti_homed_server_name
  service_description   Ping Second IFace
  check_command check_ping2!10.1.1.100!3000,10%!1,20%
  contact_groupsUnix
}

for your checkcommands:

define command{
command_namecheck_ping2
command_line/usr/lib/nagios/plugins/check_ping -H $ARG1$  
-w $ARG2$ -c $ARG3$ -p 5

}


check_ping2 adds the first ARG as the ip address that you want  
monitored - This means that the HOSTNAME will remain the same, but a  
diff interface will be checked.




Thanks for the response. If I understand your reply correctly,  
though, this just adds a second service for the host, with a  
separate IP from that specified in the host directive. it does not,  
however, allow me to monitor the HOST on two separate IP's, taking  
into account that if either interface is up, the host is up. Perhaps  
my question wasn't quite clear enough. Take, for example, the  
following situation:


host a has two network interfaces: a primary with an IP of  
10.1.1.100 and a secondary with an IP of 10.1.1.101.

Host a can be reached through either interface.
Host a has its host address defined as the primary of 10.1.1.100,  
with a check command of check_ping
Host a also has a service defined as above, checking the secondary  
interface (10.1.1.101)


If the secondary interface goes down, then everything is fine:  
nagios notices that the service for the secondary interface is  
critical, checks the host on the primary, sees that as being fine,  
and sends an alert about the service (secondary port), while leaving  
the host in an OK state. This is exactly as it should be.


However, now imagine that the primary interface goes down instead.  
Nagios attempts to check the host on the primary interface, which  
also fails (sicne the interface is down), and therefore nagios  
alerts that the host is down, and any devices behind it are  
unreachable. This, however, is incorrect-since the secondary  
interface is still connected and fully functional, the host and  
everything behind it is still up and reachable. What I want is a  
situation where Nagios will send me an alert if either interface of  
a host is down, but only consider the host to be down if BOTH  
interfaces on the host are down. As I explained in my original  
posting, I have considered a couple of options that may accomplish  
this, but neither seems as elegant as I would like. Thanks for any  
thoughts!


---
Israel Brews

Re: [Nagios-users] Dual-port monitoring

[Israel Brewster]

On Mar 17, 2008, at 1:30 PM, Cook, Garry wrote:

Well, maybe you can use check_cluster as the host check? It sounds  
logical to me, but I’ve never used that check so I’m not really sure.
Also, check_icmp has the ability to PING multiple addresses. Perhaps  
using this as your host check against both IPs would give you the  
results you’re looking for…


The good: check_icmp appears to give the desired ok/critical behavior  
when used with multiple hosts. check_cluster also seems to work, and  
perhaps somewhat more efficiently, since  it is just using the results  
from the service checks, rather than re-checking. Of course, this may  
not be desired.


The bad: check_icmp (with default settings, at least) shows 60% packet  
loss to the device- even though a concurrently running ping shows no  
packet loss. Setting the max packet interval setting to something high  
(at least 3 seconds, although even that isn't high enough some times)  
seems to help, but slows down the check. Setting a lower number of  
pings (1 or 2) also works, which may be acceptable for a host check,  
as the default is just a single ping anyway.


The Ugly: Creating a second service for the second WAN port seems to  
ignore the "no re-notifications" setting, thereby flooding my inbox  
with critical messages every so often (variable timing, usually about  
every half hour). I started a separate thread on that issue though.


Thanks for the suggestions. It looks like check_icmp as the host check  
is going to be the best one of the lot. Once I get it working  
properly :)


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


Thanks,
Garry

From: Israel Brewster [mailto:[EMAIL PROTECTED]
Sent: Monday, March 17, 2008 2:37 PM
To: Cook, Garry
Cc: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 12:06 PM, Cook, Garry wrote:


Yes, check_ifstatus is a service associated with the hosts. It  
checks interfaces only. The host check is a check_icmp against the  
host address, which is the loopback. If any of the interfaces are  
down, check_ifstatus will report this, but the host does not show as  
down as long as the loopback responds to a PING, which it will if  
any of the interfaces are up.


Ok, I see what you are saying, and it does sound as though it would  
work as I desire. Unfortunately, for the device in question, it  
doesn't look as though this will be an option, as I don't think I  
can use loopback addresses (primarily Linksys RV082 devices). Thanks  
anyway.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

Thanks,
Garry

From: Israel Brewster [mailto:[EMAIL PROTECTED]
Sent: Monday, March 17, 2008 1:46 PM
To: Cook, Garry
Cc: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 11:03 AM, Cook, Garry wrote:



Do you have the ability to use loopback addresses on these devices?  
If so, that would be used as the host address, and then you could  
use other checks for the interfaces. For instance, all of my Cisco  
routers have a loopback setup. I then use ‘check_ifstatus’ to check  
the individual interfaces.


Thanks,
Garry


I assume the check_ifstatus for the interfaces are services  
associated with the host? If so, then what do you use for your host  
check? How do you get the host to show as down if all the interfaces  
are down, but not if one or both (or more, if you have more than  
two, although that is not the case with any of our devices) are up?


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
] On Behalf Of Israel Brewster

Sent: Monday, March 17, 2008 12:41 PM
To: Nagios Users Mailinglist
Subject: Re: [Nagios-users] Dual-port monitoring

On Mar 17, 2008, at 9:03 AM, Gary Every wrote:




In your services file:

define service {
  use   generic-service
  name  Ping
  host_namemulti_homed_server_name
  service_description   Ping Second IFace
  check_command check_ping2!10.1.1.100!3000,10%!1,20%
  contact_groupsUnix
}

for your checkcommands:

define command{
command_namecheck_ping2
command_line/usr/lib/nagios/plugins/check_ping -H $ARG1$  
-w $ARG2$ -c $ARG3$ -p 5

}


check_ping2 adds the first ARG as the ip address that you want  
monitored - This means that the HOSTNAME will remain the same, but a  
diff 

Re: [Nagios-users] Unwanted re-notifications

[Israel Brewster]

On Mar 19, 2008, at 8:58 AM, Jim Avery wrote:
> On 17/03/2008, Israel Brewster <[EMAIL PROTECTED]> wrote:
>> I have a service that keeps sending me notifications of the fact that
>> it is critical every half hour or so, even though the notification
>> interval for the service is set to zero.
>
> That's strange.  It could be that the nagios daemon didn't restart
> properly when you changed the config?  It might be worth stopping
> Nagios, making sure it's really stopped then starting it again.
> Failing that I'm not sure.  You could I guess get that behaviour if
> you had an escalation defined on that service but I think that's
> unlikely.

Thanks for the response. After some further digging, I managed to  
track down the problem, although the why and how to fix are still a  
mystery. Apparently what's happening is that every so often nagios  
switches from the expected "CRITICAL" sate to a "warning" state, with  
a status message similar to "PING WARNING - DUPLICATES FOUND! Packet  
loss = 6%, RTA = 574.20 ms". Since I had warning messages disabled for  
this service, I never got that e-mail, but when it switched back to a  
"critical" state on the next check, I do get the critical message. So  
I guess Nagios is working as it should, and it's just a mystery of why  
I am getting that response from the ping when the router port is  
disabled. Thanks again!

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
>
> Cheers,
>
> Jim
> -- 
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>
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[Nagios-users] Nagios 3 status map options?

[Israel Brewster]

I have been using Nexsm with nagios 2 for some time now, and have been  
reasonably happy with it. Unfortunately, I now want to update to  
nagios 3 for a number of reasons, but Nexsm doesn't support Nagios 3  
and the developer says he probably won't have time to update it for a  
while. Therefore, I am wondering what alternatives might be out there  
that do work with Nagios 3?

I tried Nagvis a while ago (while still on 2, haven't tried the latest  
version or on 3), but it proved to be too much of a pain to get  
configured the way I needed, as I would have had to add each host and  
link between hosts manually, as well as the fact that at least with  
the version I was using, the only way to move a host was to edit the  
coordinates manually. So what other good and relatively easy to  
configure options are there? Thanks for any suggestions!

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Too stupid? Services are available, but nagios reports host to be down!

[Israel Brewster]

On Apr 8, 2008, at 2:50 AM, Heiko Schlittermann wrote:
> Hello,
>
> (using 3.0.1)
>
> I've a list of hosts, these hosts are not available for ping, but  
> normal
> service checks (SSH, SMTP, ...) work. Nagios reports theses hosts  
> beeing
> down! Ugly!
>
> If I remember well, older nagios versions "knew" that's enough to see
> one service on a host to know this host has to be up.

To a degree, yes- if you aren't actively checking the host (as would  
appear to be the case from your next paragraph), then as long as all  
services  on the host are listed as ok, nagios assumes the host is  
still ok (at least once running, I don't know how it behaves on the  
initial check). However, should any of the services go into a non-ok  
state, nagios will immediately check the host (using the host  
check_command), wherupon, in your case, it would determine the host to  
be down since it can't ping. The state of the other services does not  
affect this process, so any other services do not change state.

> The host check_command is the normale 'check-host-alive' (which is
> pinging), the check_interval is 0 -- why does nagios want to check  
> that
> host?

Because at some point one or more of the services went into a non-ok  
state.

> The check_command is inherited from some template, if I try to  
> override
> it with no value, nagios complains:
>
> Error: Host check command '(null)' specified for host 'diwi/diw' is  
> not defined anywhere

Yep- you can't have no value in the check_command directive. If you  
just want to assume the host is up all the time, you can use the  
check_dummy plugin (after defining a check_dummy command in your  
checkcommands.cfg, naturally). Otherwise you'll need to figure out  
some check Nagios can perform to determine if the host is running,  
even if that check is just checking one of the services again or  
something.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
>
> So - please, could anybody point to my stupidity?
>
> Thanks.
>
>
>Best regards from Dresden
>Viele Grüße aus Dresden
>Heiko Schlittermann
> -- 
> SCHLITTERMANN.de  internet & unix  
> support -
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Re: [Nagios-users] Nagios 3 status map options?

[Israel Brewster]

No replies? Am I the only one who wants to use a graphical network  
overview with Nagios 3? Or is it just that everyone else uses Nagvis?

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


On Apr 2, 2008, at 9:57 AM, Israel Brewster wrote:
> I have been using Nexsm with nagios 2 for some time now, and have been
> reasonably happy with it. Unfortunately, I now want to update to
> nagios 3 for a number of reasons, but Nexsm doesn't support Nagios 3
> and the developer says he probably won't have time to update it for a
> while. Therefore, I am wondering what alternatives might be out there
> that do work with Nagios 3?
>
> I tried Nagvis a while ago (while still on 2, haven't tried the latest
> version or on 3), but it proved to be too much of a pain to get
> configured the way I needed, as I would have had to add each host and
> link between hosts manually, as well as the fact that at least with
> the version I was using, the only way to move a host was to edit the
> coordinates manually. So what other good and relatively easy to
> configure options are there? Thanks for any suggestions!
>
> ---
> Israel Brewster
> Computer Support Technician
> Frontier Flying Service Inc.
> 5245 Airport Industrial Rd
> Fairbanks, AK 99709
> (907) 450-7250 x293
> ---
>
>
>
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[Nagios-users] Nagios 3 external commands problem

[Israel Brewster]

I apologize for asking what I had thought was a FAQ, but I can't seem  
to find the needed info now. At any rate, I just got finished updating  
my nagios install to version 3 (OpenBSD 4.2 OS), and aside from the  
lack of a decent status map (no one has any suggestions there?  
Really?) it's working. With the exception of external commands from  
the web interface. For some reason, whenever I attempt an external  
command from the web, I get the following error:

Sorry, but you are not authorized to commit the specified command.
Read the section of the documentation that deals with authentication  
and authorization in the CGIs for more information.
Return from whence you came

I have the following in my cgi.cfg file:

authorized_for_configuration_information=admin
authorized_for_system_commands=*

I actually don't want the "*" there,  but I stuck it in just to see if  
it fixed the issue. It didn't. I am authorized to the web server, as I  
got the login/password prompt, and nagios recognizes the fact in the  
little header on every page that says "logged in as". The /var/nagios/ 
rw/nagios.cmd file exists with permissions prw-rw  1 _nagios  www,  
and my apache error logs show no errors when attempting to run the  
command. What am I missing? Thanks!

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Nagios 3 external commands problem

[Israel Brewster]

On Apr 10, 2008, at 10:28 AM, Frost, Mark {PBG} wrote:
>
> Can't say I can be a lot of help with the status map.  I never found  
> it
> to be workable in any form, so I just don't use it.

Same here- thus the reason I'm looking for a better option. But that's  
another thread :)

>
>
> When I look at my own id in cgi.cfg, I'm listed in
>
> authorized_for_system_information=
> authorized_for_configuration_information=
> authorized_for_system_commands=
> authorized_for_all_hosts=
> authorized_for_all_services=
> authorized_for_all_service_commands=
> authorized_for_all_host_commands=
>
> and I have no problems doing anything (but I should have all these
> rights anyway).  I've never heard that you could use a wildcard for
> these fields.

Ok, found the problem. Totally my fault- I had missed a couple of  
directives in the cgi.cfg file. Your response clued me into that  
fact :P Sorry to waste your guy's time.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
> Mark


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[Nagios-users] Hosts w/o services

[Israel Brewster]

Running nagios 3.0, I have set up a number (most) of my hosts without  
services, since all I am interested in monitoring is the hosts  
themselves. However, this is causing a number of little annoyances,  
such as the hosts not showing up when I type their name into the  
nagios sidebar search, throwing numerous warnings if I do a verify  
from the command line, giving me a blank page when I click the  
hostname link from the hostgroup overview page, etc. Is there any way  
around these issues other than adding a check_dummy service check to  
each host? Thanks.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Hosts w/o services

[Israel Brewster]

On Apr 16, 2008, at 10:21 AM, Paul Weaver wrote:
> You can use check_ping -- I assume the boxes are pingable, and you  
> want
> to check they are pingable, even if they do nothing else that can be
> monitored.
>
> If you don't want to check they work via ping, why are you even
> modelling them?

I AM checking them via ping- in the host check. It just doesn't make  
sense to be pinging both as a service check and as a host check, and  
since the ping is actually determining the host state, not the state  
of a service, it makes more sense to put the ping check as the host  
check, rather than a separate service.

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
>> -Original Message-
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf
>> Of Israel Brewster
>> Sent: 16 April 2008 19:01
>> To: Nagios Users Mailinglist
>> Subject: [Nagios-users] Hosts w/o services
>>
>>
>> Running nagios 3.0, I have set up a number (most) of my hosts
>> without
>> services, since all I am interested in monitoring is the hosts
>> themselves. However, this is causing a number of little annoyances,
>> such as the hosts not showing up when I type their name into the
>> nagios sidebar search, throwing numerous warnings if I do a verify
>> from the command line, giving me a blank page when I click the
>> hostname link from the hostgroup overview page, etc. Is there
>> any way
>> around these issues other than adding a check_dummy service check to
>> each host? Thanks.
>>
>> ---
>> Israel Brewster
>> Computer Support Technician
>> Frontier Flying Service Inc.
>> 5245 Airport Industrial Rd
>> Fairbanks, AK 99709
>> (907) 450-7250 x293
>> ---
>>
>>
>>
>> --
>> ---
>> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
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Re: [Nagios-users] Hosts w/o services

[Israel Brewster]

On Apr 16, 2008, at 10:10 AM, Ford, Andy wrote:
>
> 
> There must be some reason for each server or device to be on the
> network, it must provide some service, even if it's just a lowly(?)
> sshd.
> Do yourself and your organization a favor and monitor that reason!
> 

To some extent, yes, but not necessarily a service we can monitor.  
There are quite a few devices on the network that it is important to  
us to know should the device fail, but aren't offering any separately  
monitorable "service", per se. For example, printers. We need to know  
if one dies, so we can fix it before it becomes a problem (not to  
mention that fixing the boss's printer before he even knows it has a  
problem makes you look good ;-) ), but other than the simple ping host  
check, they don't offer any "services" we can monitor.

Even some more essential devices such as switches can fall into this  
category, as they are just routing traffic, not offering any  
"services". I could, of course, go crazy and use check_snmp or  
something to monitor each port on said switch as a service, but that  
is way overkill for our needs- we just need to know that the switch is  
there and functioning, i.e. host check.

Not to mention the rather large category of client machines, which we  
need to know are running so they can be backed up, and, of course,  
used for whatever the user needs. Kind of difficult to monitor the  
ability to run office, or an e-mail client :-). We still want to  
monitor the host, though, so that hopefully if/when a client machine  
should die we can fix it before the user (who may well come in before  
us in the morning) is impacted. We could, of course, monitor something  
like ssh on those machines, but why? All we (and the user) care about  
is that the machine is functioning.

So yeah, while this may not be the way nagios is designed to work, and  
may never be (which I can live with if so), I really don't see this as  
being all that unusual a situation, as some responses seem to imply.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
>> -Original Message-
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf
>> Of Israel Brewster
>> Sent: Wednesday, April 16, 2008 1:01 PM
>> To: Nagios Users Mailinglist
>> Subject: [Nagios-users] Hosts w/o services
>>
>> Running nagios 3.0, I have set up a number (most) of my hosts
>> without
>> services, since all I am interested in monitoring is the hosts
>> themselves. However, this is causing a number of little annoyances,
>> such as the hosts not showing up when I type their name into the
>> nagios sidebar search, throwing numerous warnings if I do a verify
>> from the command line, giving me a blank page when I click the
>> hostname link from the hostgroup overview page, etc. Is there
>> any way
>> around these issues other than adding a check_dummy service check to
>> each host? Thanks.
>
>
>
>
> Wachovia Securities, LLC's outgoing and incoming e-mails are  
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>


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Re: [Nagios-users] Hosts w/o services

[Israel Brewster]

On Apr 16, 2008, at 11:25 AM, Jay R. Ashworth wrote:
> On Wed, Apr 16, 2008 at 11:20:29AM -0800, Israel Brewster wrote:
>> To some extent, yes, but not necessarily a service we can monitor.
>
> There are cases that fit this description, but I'm not sure if the
> examples you provide are.
>
>> For example, printers.
>
> Telnet to 9100 and look for a banner.  Or the equivalent for non
> JetDirect printers..

Ok, that one might be of some use, in the case where the printer is  
responding to pings (host up) but not accepting connections (service  
down). Thanks for the suggestion, I'll look into it.

>> Even some more essential devices such as switches...
>
> And moving traffic; you might find it useful to ping-check other  
> things
> on that switch.  Or at least ssh-check the switch controller itself.

Yep, we are - all the hosts connected to the switch. That's not a  
service check on the switch, though, that's host checks on devices  
connected to it. Trying to monitor something like this directly on the  
switch as a service check would just be redundant. Maybe save a few  
seconds,  but if you see all the hosts on the far side of a switch go  
down, while the switch is still up, it should be fairly obvious that  
the switch is having problems :-D

>> Not to mention the rather large category of client machines
>
> Sure.  But for workstations, you're not monitoring diskspace?  Open  
> TCP
> listens (to watch for trojans)

Well, we could, and for some places this sort of through monitoring is  
overkill.

>> So yeah, while this may not be the way nagios is designed to work,  
>> and
>> may never be (which I can live with if so), I really don't see this  
>> as
>> being all that unusual a situation, as some responses seem to imply.
>
> Well, it's not that it's unusual, I think; I believe the assertion
> being made is that only doing a ping is not the Best Practice.

I guess I see your point, in that there is typically something on any  
device which could be monitorable as a service. One could also argue  
that if it could be an issue (such as disk space on a client machine,  
or Open TCP listens), it should be monitored. These are valid  
arguments. However, I would argue that cluttering up your nagios  
display with services that either a) are fringe cases which would be  
quickly noticed anyway, or b) which you really don't care about, not  
to mention the additional network, monitoring server, and client load  
this imposes, is not best practice. Best Practice, in my mind at  
least, is Keep It Simple. Just monitor what you need to in order to  
provide the best service to your clients you can.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
> Cheers,
> -- jra
> -- 
> Jay R. Ashworth[EMAIL 
> PROTECTED]
> Designer+-Internetworking--+- 
> +RFC 2100
> Ashworth & Associates   |  Best Practices Wiki |  
> | '87 e24
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> 727 647 1274
>
>  If you can read this... thank a system administrator.  Or two.   
> --me
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Re: [Nagios-users] Hosts w/o services

[Israel Brewster]

On Apr 16, 2008, at 11:32 AM, Marc Powell wrote:
>
>
>> -Original Message-
>> From: [EMAIL PROTECTED] [mailto:nagios- 
>> users-
>> [EMAIL PROTECTED] On Behalf Of Israel Brewster
>> Sent: Wednesday, April 16, 2008 2:20 PM
>> To: Ford, Andy
>> Cc: Nagios Users Mailinglist
>> Subject: Re: [Nagios-users] Hosts w/o services
>>
>> On Apr 16, 2008, at 10:10 AM, Ford, Andy wrote:
>
>
>> So yeah, while this may not be the way nagios is designed to work,  
>> and
>> may never be (which I can live with if so), I really don't see this  
>> as
>> being all that unusual a situation, as some responses seem to imply.
>
> In such cases the typical action is to configure the ping as a service
> check and no, a single ping or check_dummy, as a host check, Whether
> you're using parenting or not determines which of those you choose.

Thanks :-) Yeah, that's how I had it when I was running 2.x. It just  
seemed more intuitively obvious to go with host checks once 3.0 made  
that a reasonable option, since it was the host state, not a service  
state, that we were monitoring. That's ok though. I was just wondering  
if there was a better way. Apparently not :-) Thanks again everyone!

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
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Re: [Nagios-users] Hosts w/o services

[Israel Brewster]

On Apr 16, 2008, at 11:32 AM, David Wallis wrote:

> I have the same situation with some devices. I just configure a  
> "ping" service for them, and then move on to more interesting  
> problems. When there's such a simple solution, it sometimes doesn't  
> pay to overthink the problem.

Yeah, I'm seeing that. Just didn't think it would be such a big  
issue :-D I was actually expecting either a simple solution, or a  
simple "it can't be done". Unfortunately, being the stubborn type, I  
tend to beat these things into the ground :-P :-D

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
> -- 
> David Wallis
> Information Technology
> Advanced Photon Source
> Argonne National Laboratory
> 630.252.7375


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[Nagios-users] Down/unreachable confusion

[Israel Brewster]

I have a host being monitored in nagios 3.0 that fluctuates between  
being down and unreachable. The periods where it is listed as  
unreachable typically only last a few seconds to a minute (I didn't  
even think it was checking that often, but whatever), while the  
periods of "down" time (the host really is down) are several hours in  
duration. Naturally, every time it fluctuates back to down (only up  
and down alerts are enabled for this host-not unreachable), it sends  
out an alert, which gets a little annoying.

This all would make sense, however, except for one thing: this host's  
parent, and all other parents back up the tree to nagios are listed as  
being solidly up as far back as the records go. So why is it briefly  
switching to an "unreachable" state, and how can I make it stop? Or at  
the very least, how can I make it stop sending alerts every time it  
switches between these two critical states? Thanks.

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Fwd: MRTG Graf

[Israel Brewster]

On Apr 29, 2008, at 8:11 PM, Devinder Singh wrote:




-- Forwarded message --
From: Devinder Singh <[EMAIL PROTECTED]>
Date: 2008/4/30
Subject: MRTG Graf
To: [EMAIL PROTECTED]



Hi

I have problems in getting bandwidth statistics using MRTG.

define service{
use  generic-service ; Inherit  
values from a template

host_name   D-Link
service_description   Port 1 Bandwidth Usage
check_command   check_local_mrtgtraf!/home/mrtg/cfg/ 
mrtg.cfg!AVG!100,100!500,500!10

}

I tried to run the above command and see the file is outdated.

i have ran the cfgmaker program and stored the mrtg.cfg in /home/ 
mrtg/cfg/mrtg.cfg


Is MRTG running? Just making the config isn't good enough- you do  
actually have to run MRTG. Typically, this is done with a crontab  
entry, so it runs every 5 minutes or so. See http://oss.oetiker.ch/mrtg/doc/mrtg-unix-guide.en.html


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



Please advise

--
Devinder



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Re: [Nagios-users] Fwd: MRTG Graf

[Israel Brewster]

On Apr 29, 2008, at 8:11 PM, Devinder Singh wrote:




-- Forwarded message --
From: Devinder Singh <[EMAIL PROTECTED]>
Date: 2008/4/30
Subject: MRTG Graf
To: [EMAIL PROTECTED]



Hi

I have problems in getting bandwidth statistics using MRTG.

define service{
use  generic-service ; Inherit  
values from a template

host_name   D-Link
service_description   Port 1 Bandwidth Usage
check_command   check_local_mrtgtraf!/home/mrtg/cfg/ 
mrtg.cfg!AVG!100,100!500,500!10

}

I tried to run the above command and see the file is outdated.

i have ran the cfgmaker program and stored the mrtg.cfg in /home/ 
mrtg/cfg/mrtg.cfg
Oh, I should also point out that unless you are using a non-standard  
mrtgtraf plugin, the file specified in your configuration above should  
be the .log file generated my mrtg, not the config file.


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



Please advise

--
Devinder



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Re: [Nagios-users] Fwd: MRTG Graf

[Israel Brewster]

On Apr 30, 2008, at 6:21 PM, Devinder Singh wrote:



Hi

How do i get the following log file
192.168.1.253_1.log i which directory is that log file found

I only get a log file in var/log.mrtg.log

Pls advise
Devinder


The location that MRTG uses for your log files is defined in your  
mrtg.cfg file, specifically the "WorkDir:" directive. Keep in mind,  
these files are not created until MRTG has been run successfully. If  
they don't exist, and you have run MRTG, it would make sense to look  
at the /var/log/mrtg.log file to see if maybe MRTG isn't running  
properly, or is generating some error. I would HIGHLY recommend that  
you read through http://oss.oetiker.ch/mrtg/doc/mrtg-unix- 
guide.en.html , and perhaps some of the other associated MRTG  
documentation to get a better understanding of how MRTG works and how  
to set it up- this stuff is all explained in there. Also, the MRTG  
mailing lists would be a better place for questions regarding setting  
up and using MRTG. After that, if you still have issues specifically  
with integrating the MRTG data with nagios, this would be an  
appropriate place to ask those questions.


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



define service{
use generic-service ; Inherit values from a template

host_name   linksys-srw224p
service_description Port 1 Bandwidth Usage
	check_command		check_local_mrtgtraf!/var/lib/mrtg/ 
192.168.1.253_1.log!AVG!100,200!500,500!10

}



-- Forwarded message --
From: Devinder Singh <[EMAIL PROTECTED]>
Date: 2008/4/30
Subject: MRTG Graf
To: [EMAIL PROTECTED]



Hi

I have problems in getting bandwidth statistics using MRTG.

define service{
use  generic-service ; Inherit  
values from a template

host_name   D-Link
service_description   Port 1 Bandwidth Usage
check_command   check_local_mrtgtraf!/home/mrtg/cfg/ 
mrtg.cfg!AVG!100,100!500,500!10

}

I tried to run the above command and see the file is outdated.

i have ran the cfgmaker program and stored the mrtg.cfg in /home/ 
mrtg/cfg/mrtg.cfg


Oh, I should also point out that unless you are using a non-standard  
mrtgtraf plugin, the file specified in your configuration above  
should be the .log file generated my mrtg, not the config file.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



Please advise

--
Devinder



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--
Devinder


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Re: [Nagios-users] Hostgroup definition

[Israel Brewster]

On May 12, 2008, at 7:46 AM, Jay R. Ashworth wrote:

> On Mon, May 12, 2008 at 05:03:17PM +0200, Andreas Ericsson wrote:
>> Not really, no, but the hostgroup needs to be defined somewhere.  
>> When it
>> is, you can do something like the following
>>
>> define host {
>>  use template_with_all_required_variables
>>  hostgroups   hostgroup1,hostgroup2,hostgroup4,hostgroupn
>>  }
>
> It doesn't cause any confusion, statistical or otherwise, to put a  
> host
> in more than one group, does it?

Nope. I do this for pretty much all of my hosts, actually. For  
example, all printers are in a "Printer" host group, to associate  
services as well as group all printers together. Additionally, I have  
a host group for each location we have machines in, so a printer in  
Barrow would be in both the printer hostgroup (for the services) and  
the "Barrow" hostgroup (for the location). Makes it easy to find all  
the machines in barrow, as well as all the printers.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
> Cheers,
> -- jra
> -- 
> Jay R. Ashworth   Baylink  [EMAIL 
> PROTECTED]
> Designer The Things I  
> Think   RFC 2100
> Ashworth & Associates http:// 
> baylink.pitas.com '87 e24
> St Petersburg FL USA  http://photo.imageinc.us +1  
> 727 647 1274
>
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>Those who count the vote decide everything.
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Re: [Nagios-users] nagios + trap snmptt

[Israel Brewster]

On May 13, 2008, at 12:06 AM, Ange AMBEMOU wrote:


hello,

i wan to know if is possible to have interface web to log a trap of  
snmptt. And see this in web interface of nagios. thanks for your help.


This might help: http://www.samag.com/documents/s=9559/sam0503g/
---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---




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[Nagios-users] Nagios 3 visual map

[Israel Brewster]

I posted this question about a month and a half ago, but didn't get  
any replies. I'm hoping that now that Nagios 3 has been out a bit  
longer, there might be more options.

My company has been using nagios 2.x for some time, with the add-on  
Nexsm for displaying a visual overview of the network "at-a-glance".  
It was also useful for showing visitors (and management) what our  
network was like cleanly and easily. Since Nagios 3 was released, and  
we migrated over to it (for a number of reasons), nexsum no longer  
works. The author says he'd like to add nagios 3 support, but he  
doesn't have the time at the moment and may not anytime soon. So I am  
looking for another option. Any suggestions?

I did look at nagvis a while back, but at least at that time it would  
have required me to go through a very time-consuming process of  
placing each host and each link on the layout manually, and then  
adjusting the coordinates of each host and link in a configuration  
file to make it look good. This process would have been prohibitively  
time-consuming. I need something that can automatically place the  
hosts and links on the map, and simply allow me to drag the hosts  
around to position them. Thanks for any suggestions anyone might have  
to offer!

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Nagios 3 visual map

[Israel Brewster]

On May 20, 2008, at 12:12 PM, Hendrik BŠäcker wrote:

> Hi,
>
> Israel Brewster schrieb:
>> I did look at nagvis a while back, but at least at that time it  
>> would  have required me to go through a very time-consuming process  
>> of  placing each host and each link on the layout manually, and  
>> then  adjusting the coordinates of each host and link in a  
>> configuration  file to make it look good. This process would have  
>> been prohibitively  time-consuming. I need something that can  
>> automatically place the  hosts and links on the map, and simply  
>> allow me to drag the hosts  around to position them. Thanks for any  
>> suggestions anyone might have  to offer!
>
> well... give NagVis a second chance - it now has a "Automap" feature.
>
> http://www.nagvis.org/_media/nagvis-1.3-automap_undirected-1.png

That sounds promising. I'll give it a shot

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
> Regards,
> Hendrik


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Re: [Nagios-users] Nagios 3 visual map

[Israel Brewster]

On May 20, 2008, at 12:12 PM, Hendrik BŠäcker wrote:

> Hi,
>
> Israel Brewster schrieb:
>> I did look at nagvis a while back, but at least at that time it  
>> would  have required me to go through a very time-consuming process  
>> of  placing each host and each link on the layout manually, and  
>> then  adjusting the coordinates of each host and link in a  
>> configuration  file to make it look good. This process would have  
>> been prohibitively  time-consuming. I need something that can  
>> automatically place the  hosts and links on the map, and simply  
>> allow me to drag the hosts  around to position them. Thanks for any  
>> suggestions anyone might have  to offer!
>
> well... give NagVis a second chance - it now has a "Automap" feature.

Ok, tried that, and it is certainly closer to what I am looking for  
than it was. Still not quite there though. Actually, the first thing  
that happened is that it completely hosed my OpenBSD install- I  
couldn't run nano or the Nagios CGI's. I think, however, that was  
actually the fault of the graphviz install rather than nagvis itself.  
As far as Nagvis goes, the automap feature looks good, with a couple  
of exceptions. First (and most importantly) it doesn't show all my  
hosts. It behaves as though there is a maximum parent depth it will  
display or something. I'm not really sure what's going on, but  
significant portions of my network are not displayed. Secondly, it  
does not appear to be editable. As I mentioned, I am looking for  
something where I can simply drag and drop hosts to position them. As  
far as I can tell, this is still not an option in nagvis, even with  
the standard maps.

So, anyway to solve these issues with nagvis? Or perhaps some other  
front-end that hasn't been mentioned yet? Thanks.

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
>
> http://www.nagvis.org/_media/nagvis-1.3-automap_undirected-1.png
>
> Regards,
> Hendrik


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Re: [Nagios-users] nagvis ideas?

[Israel Brewster]

On Aug 19, 2008, at 8:29 AM, Paul Weaver wrote:

>> It seems to me, that there are 2 basic ways to "view" our
>> conglomeration of systems. One is geographic, and the 2nd is
>> from a network topology point of view. Frankly I think a
>> nagvis presentation of both would be useful. The network
>> topology version is fairly straightforward (I think, but I
>> would like to here others point of view on this). The
>> geographic version however, frankly I am struggling with. If
>> I show the systems on the large area map, they are fairly
>> spread out. I am thinking of doing that, and making dynamic
>> links for each cluster. These links would be color coded
>> based upon the status of all of the computers in that
>> cluster, and would provide a link to a more detailed view.
>>
>> I'd love to hear what other peoples thoughts on this are.
>
> Our old monitoring solution was a product called solarwinds,
> the main view was a map which had little icons for various
> machines (it didn't monitor a lot more, great for monitoring
> all the interfaces on the network, but useless for system
> monitoring)
>
> I felt the map was pointless. If something did break, you
> would get a little red dot in the corner. When I implemented
> Nagios I decided to ignore nagviz for a bit.
>
> The only "map" I can see being off use would be something like
> http://www.nagvis.org/sites/default/files/screenshots/c_by_dave_rearden_
> 2.png
>
> If you had a monitor hanging in the apps room. but even then, we  
> rarely
> have hardware problems, and if we do, the machine will have a flashing
> red led. And even if we didn't, they're all labelled.
>
> If you are truly physically seperated (not just different rooms in the
> same building, on the same power feed)
> http://www.nagvis.org/sites/default/files/screenshots/nagvis_map_2.png
>
> Could show you areas where there are invading tanks knocking out your
> infrastructure, but a network topology might be better.
>
> (Of course if you use nagios to monitor your country's defence  
> systems,
> a physical map might be a good way of doing it)
>
> 1 of the 3 nagios installations I know about here have a default  
> screen
> of "service problems". Our installation has a custom-written screen
> which highlights problems affecting users. The other isn't a real
> nagios installation, it was provided by an external company -- it  
> barely
>
> monitors hosts, and only does about 20 anyway, the statusmap is fine
> for that.
>
> I'd be interested to know how many people find "maps" helpful for
> anything
> other than impressing management.
>

Well, in my company impressing management (or random guests who walk  
through) is an entirely legitimate reason for having some sort of  
network map ;) From a more practical standpoint, however, having a  
visual map can help tell at a glance where the problem lies- for  
example, do we just have one computer in Nome down, or is our entire  
Nome station having problems? The answer to this question lets us know  
where to start looking for a solution, and a visual map tells us at a  
glance how widespread an issue is by the numbewr of red blotches in a  
given area. It also shows at a glance that it is Nome, and not Barrow  
that is having problems (since they are geographically separated). If  
all we have is a text list of "Service Problems" we have to go over to  
it (or take the time to pull it up on our local computers) to figure  
out where the problem is, and how wide spread. A quick glance in the  
general direction will only tell us "something" is down, not where or  
how widespread.

That said, I have yet to manage to get Nagvis to work well enough for  
us to be worth the time to set it up. In order to get a decent map out  
of it (in my experience, at least) you have to set it up manually,  
adding each host and link individually, which when you have hundreds  
of hosts would take quite a while. [Rant] The automap feature of the  
newest version I tried worked decently, but did not appear to be  
customizable (which I definitely want), and also did not appear to  
show all the hosts I was monitoring. I need something that  
automatically populates the map with your hosts and links, but allows  
you to then customize the populated map to your heart's content- 
modifying an already populated map takes way less time than creating  
one from scratch. Something like nexsm (nexsm.sf.net) but that works  
with nagios 3. [/Rant]

---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

Re: [Nagios-users] Nagvis alternatives

[Israel Brewster]

On Sep 2, 2008, at 8:34 AM, Alex Dehaini wrote:


Hi Guys,

Are there other projects like nagvis?


If you are still running nagios 2, nexsm ( http://nexsm.sf.net ) is an  
excellent option, one that I highly preferred over nagvis for a number  
of reasons. Doesn't work with nagios 3, however. I Don't know how hard  
it would be to fix (I suspect it is just a log parsing issue, but I  
don't know), but it is written in java, which I don't know, and the  
developer hasn't had time to work on it lately. Oh well.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] Nagvis alternatives

[Israel Brewster]

On Sep 3, 2008, at 1:25 AM, Alex Dehaini wrote:

Have you used it in production environment before. What are the  
disadvantages and advantages over nagvis?


Yeah, we were running nexsm on our network of about 300 devices - not  
huge, but not tiny. The main advantage that I found was ease of  
configuration. With nexsm, it starts with the map fully populated with  
all network devices and links, and you can simply drag the devices  
around to where you want them. With nagvis, it starts off with an  
empty map, and you have to manually place every device AND every link.  
If you are just trying to populate a server room or something, this is  
fine, and probably even easer than the nexsm approach (where you would  
have to tell it to hide all the unwanted hosts), but when you are  
trying to map 300 or so devices, plus links, it quickly becomes  
prohibitively time consuming. And while you can reposition devices in  
nagvis by dragging (although I have had no end of trouble getting that  
to work), they aren't attached to their links, so you have to manually  
reposition BOTH the device and any links to/from the device. This  
isn't an issue with nexsm.


I also found the display in nexsm to be easier to use- you can easily  
zoom in and out to see more or less of the map (if you can do this in  
nagvis, I haven't discovered how), and the map can be as large as you  
want- nagvis (from what I can tell) is limited to the size of the  
background image you choose. Although I do prefer the icon sets with  
nagvis over nexsm- nexsm uses the image you set in the nagios config.


Finally, I prefer nexsm over nagvis for performance issues, although  
admittedly I suspect this is due to mysql, not nagvis itself. On the  
system I am using, I have found that when nagios is dumping stuff to  
the database, mysql uses pretty much all available processing power,  
and nagios hangs waiting for it to complete. Nexsm just reads the  
nagios logs directly, and while it is java, which uses a fair amount  
of processor, it's not as bad as mysql, at least on my OS. Also, when  
running nagvis, nagios has a tendency to stop updating completely  
every day or two, and can't be restarted until I kill the ndo2db  
daemon. I never had issues like that with nexsm- probably because it  
was just passively reading the log files, rather than trying to use an  
active event broker in nagios. Nexsm also just "feels" simpler to me-  
nagvis consists of an event broker module, a ndo2db daemon, the mysql  
server (although that might already be running somewhere for something  
else) and the web front end. nexsm is "just" a single java applet.


Keep in mind though that my opinions may be at least partially based  
on incomplete or incorrect knowledge of nagvis. While I used nexsm  
extensively until we moved to nagios 3, I have never actually managed  
to get nagvis running acceptably. The three separate occasions I tried  
it have all been non-starters. The last time I got it running for a  
couple of days, but between the above mentioned performance issues,  
and never really being able to get the maps configured the way I  
wanted, we quickly took it offline. Also it is entirely possible that  
my desired usage (as a full-network overview) is better suited for  
nexsm than nagvis, and a different usage might work better with  
nagvis. But so far, for us, nagvis has proven to not be sutable.


-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



Lex

On Tue, Sep 2, 2008 at 11:20 PM, Israel Brewster <[EMAIL PROTECTED] 
> wrote:

On Sep 2, 2008, at 8:34 AM, Alex Dehaini wrote:


Hi Guys,

Are there other projects like nagvis?


If you are still running nagios 2, nexsm ( http://nexsm.sf.net ) is  
an excellent option, one that I highly preferred over nagvis for a  
number of reasons. Doesn't work with nagios 3, however. I Don't know  
how hard it would be to fix (I suspect it is just a log parsing  
issue, but I don't know), but it is written in java, which I don't  
know, and the developer hasn't had time to work on it lately. Oh well.


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



--
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Developer
Site - www.alexdehaini.com
Email - [EMAIL PROTECTED]
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Re: [Nagios-users] Nagvis alternatives

[Israel Brewster]

On Sep 5, 2008, at 2:23 AM, Alex Dehaini wrote:


Thanks matthew,

Does nexsm display the change on the map when a device goes down?  
Are there any screen shots I can view?


Yes, nexsm shows a live view of the status of your devices, sing  
different colored backgrounds to indicate device/service status. There  
are a couple of screen shots available at http://www.nagiosexchange.org/cgi-bin/jump.cgi?ID=2137&view=File1;d=1 
 and http://www.nagiosexchange.org/cgi-bin/jump.cgi?ID=2137&view=File2;d=1 
 In the first one, the ssh host in the lan group has a problem - note  
the red text and background. When I was using it, I had all the host  
icons be 1-pixel dots, with a significantly larger dot as a background  
image, so basically all you saw for each host was a red (critical)  
yellow (warning/unreachable/etc) or green (OK) dot. For our purposes,  
I found this approach made more sense than trying to fit a bunch of  
large icons onto the screen.


---
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



Lex

On Fri, Sep 5, 2008 at 10:22 AM, Matthew Macdonald-Wallace <[EMAIL PROTECTED] 
> wrote:

On Fri, 5 Sep 2008 10:18:19 +
"Alex Dehaini" <[EMAIL PROTECTED]> wrote:

> Basically the mapping feature - nagios does the rest, I am happy  
with

> nagios but nagios maps arecrap. Nagvis allows you to display hosts
> and services graphically.

OK, cool.

In that case, I believe that your best bet at the moment is Nexsm as
previously discussed, however if I find anything else, I'll post it
here!

Cheers,

M.
--
Matthew Macdonald-Wallace
[EMAIL PROTECTED]
http://www.truthisfreedom.org.uk



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[Nagios-users] NAGVIS minimal broker options

[Israel Brewster]

In trying to implement NAGVIS on my system, I have been running into  
performance issues where the NDO daemon/mysql consume vast amounts of  
processor power, essentially bringing nagios and everything else to a  
halt until they complete. This is a problem (I belive) with mysql, and  
as such can't really be helped directly (except by moving the sql  
server to another machine), however I was thinking it may be possible  
to minimize the impact by telling nagios to broker less than  
everything, on the assumption that nagios is sending some stuff to the  
database that nagvis doesn't actually need. Is this, in fact, the  
case? If so, what are the minimal broker options needed to make nagvis  
happy? Thanks.
-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---



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Re: [Nagios-users] check_mysql

[Israel Brewster]

On Oct 15, 2008, at 11:00 AM, jeremiah wrote:

> I want nagios to automatically check mysql services on my servers.
> However when i view the web interface i see that staus is UNKNOWN  
> and it
> displays the usage for check_mysql. In what file am i supposed to put
> the arguments for this command?

The arguments go in your service definition on the check_command line,  
separated from each other and the command name by "!". So in your  
case, you would have a check_command line something like:

check_command   check_mysql!!!

where   and  are respectively whatever you need for  
the -P, -u and -p switches to check_mysql.

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---

>
>
> Here is what i have so far in commands.cfg
>
> define command{
>command_namecheck_mysql
>command_line$USER1$/check_mysql -H $HOSTADDRESS$ -P $ARG1$
> -u $ARG2$ -p $ARG3$
> }
>
> and my services.cf file...
>
> define service{
>use generic-service ; Name
> of service template
>hostgroup_name  mysql_servers
>service_description MYSQL
>is_volatile 0
>check_period24x7
>max_check_attempts  3
>normal_check_interval   3
>retry_check_interval1
>contact_groups  admins
>notification_interval   30
>notification_period 24x7
>notification_optionsw,u,c,r
>check_command   check_mysql
>}
>
>
> Thanks!
>
>
>
> Disclaimer: The information contained in this transmission,  
> including any
> attachments, may contain confidential information of Panasonic  
> Avionics
> Corporation.  This transmission is intended only for the use of the
> addressee(s) listed above.  Unauthorized review, dissemination or  
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> of the information contained in this transmission is strictly  
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Re: [Nagios-users] checkhostalive vs ping service

[Israel Brewster]

For me, I went to doing all host checks (pings)/no service checks once  
we went to nagios 3 because of the logic of it. When I am pinging a  
host, I am checking to see if a host is up, i.e. host check. "ping"  
isn't some service running on the host that I am checking, it is  
checking the host itself. So from a logic standpoint, to me at least,  
it made more sense to just do the host checks.
-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---


On Oct 31, 2008, at 2:10 AM, L B wrote:

> Hello all,
>
> What is the difference between checking a host is alive with a check
> in the host template (check_command check-host-alive), and creating a
> ping service applied to the host ?
> I did a test with both configurations, and didn't see a different  
> behavior.
>
> I thought it was a question of dependencies: if a service fails, a
> host check is done to check if the host is up. But if one of the
> services (ping or another) fails, a host check is done anyway even if
> my host checks are disabled (check_interval 0), (that's a correct
> behavior for me)
>
> My configuration doesn't have host checks because it was imported
> from Nagios 2.x, and disabling host checks was an optimization setting
> I've read somewhere (I also read that it's not necessary anymore with
> nagios 3) . Now I'm running Nagios 3, so I'm wondering if it would
> make sense to disable the ping service checks and do it as a host
> check. Why should I do /don't do this ?
>
> Thanks!
> -- 
> L.B.
>
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Re: [Nagios-users] Add hostgroup to servicegroup?

[Israel Brewster]

On Nov 7, 2008, at 8:18 AM, Sean Carolan wrote:

> Why can't you add an entire hostgroup to servicegroup?  As it stands I
> would have to maintain an entire list of hosts for each service group,
> something I'm not keen on doing.  It would be so much easier if we
> could just drop the hostgroup name into the servicegroup definition
> and be done with it.  Is this planned for a future version of Nagios?

Well, you can at least add an entire hostgroup to a service using the  
hostgroup_name directive in the service definition - perhaps this  
would work? Granted, you would still need to add the hostgroup to each  
individual service in the servicegroup, but I would think this would  
still be better than adding/maintaining an entire list of hosts for  
each servicegroup.

-------
Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
---
>
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