https://github.com/mludvig/nagios-plugins/blob/268693c0afa2775c719584212433164cd846fe23/check_snmp_uptime.pl
Joerg
Am 20.10.2012 um 20:14 schrieb "Will Bashlor" <wbash...@atcnetworks.net>:
> The thought in my mind for querying uptime via snmp had 2 purposes, 1.) to
> (possibly) alert on no snmp response, and 2.) To display uptime in a list
> format on Nagios for my network engineers/techs to view.
>
> I like the idea of alerting on uptime < 1 day. But wouldn’t the reply need to
> be in a numbered time format only? I guess my mind is in Cacti threshold
> plugin mode. For example:
>
> If the snmp respond replies with 4579200 in seconds (53 days), and I want to
> alert on uptime less than 1 day then my alert value would be <86400, correct?
> If this is true how can this be done when the response is:
>
> “iso.3.6.1.2.1.1.3.0 = Timeticks: (447923619) 51 days, 20:13:56.19”
>
> Or can I alert based on 447923619 only? It appears the 447923619 is seconds
> with the last 2 digits being hundredths. Secondly, how can I simply display
> “51 days, 20:13:56.19” In Nagios? I know these are basic questions, I have a
> lot to learn and will continue to research every day.
>
> We have ssh only enabled for obvious security reasons, so that would work as
> well for monitoring device vitals.
>
> I’m still interested in what other Network Managers as myself are using,
> services wise to monitor critical core equipment vitals other than ping, if
> anyone else would like to share.
>
> Today we are using an older version of whatsup with a little over 1000
> devices/services (includes CPE) with ping only. I’m looking to Nagios as a
> possible future replacement. Love it so far, just a bit of a learning curve.
> NagiosQL helps me a lot with config files.
>
> Thanks for the response.
>
> -Will
>
> From: Fernando Feijo [mailto:ffe...@ffeijo.com]
> Sent: Saturday, October 20, 2012 12:19 PM
> To: Nagios Users List
> Subject: Re: [Nagios-users] Monitor Cisco Uptime
>
> >>>What other services do you recommend monitoring for up/down status besides
> >>>ping?
> You could also do ssh or even telnet, if you have them enabled.
>
> You did not ask, but a comment on uptime. You can use it to detect router
> bounces, detecting rogue reloads or perhaps system crashes. I have it to go
> to critical whenever the uptime is below X minutes, and email out. Network
> tests such as ping, snmp or ssh availability might miss a quick box's trip
> down, but uptime will always catch a reload.
>
> Fernando
>
> **
> On Oct 20, 2012, at 11:09 AM, Will Bashlor <wbash...@atcnetworks.net> wrote:
>
>
> Hi list,
>
> Well I’m not sure which of the steps below worked but it started working in
> Nagios and the check_snmp command works from cli. I’d still be interested in
> a guide or the correct steps I should have taken. I’m on a test vm now but
> will be reinstalling on a production vm later.
>
> root@atcdeb01:~# /usr/lib/nagios/plugins/check_snmp -H x.x.x.x -C public -o
> sysUpTime.0
> SNMP OK - Timeticks: (448261008) 51 days, 21:10:10.08 |
> root@atcdeb01:~#
>
> Now I’ve got to figure out a couple more things. Feel free to respond if you
> can help.
>
> 1.) Even though ping and uptime show ok, the test Cisco host status went
> to “PENDING” in Nagios…?
> 2.) Not sure how to get rid of part of the response I don’t need for
> uptime. I only need “51 days, 21:10:10.08” under Status Information in Nagios
>
> Another thing, I’m looking for advice. For monitoring up/down status’ for
> core Cisco routers/switches my idea is to monitor snmp response and ping, but
> I don’t want to get 2 alerts from 1 device if it were to go down.
>
> So can I get ping or snmp alerts if they go down individually and only one
> alert if the device is down hard? What other services do you recommend
> monitoring for up/down status besides ping?
>
> Or is ping sufficient enough in your opinion? I may configure text alerts
> only on ping and maybe just email alerts for snmp, or no alerts for snmp. I
> like seeing uptime in Nagios though, it makes it easy to see if any devices
> have just rebooted after an event.
>
> I continue to research every day but I am interested in your thoughts and
> opinions if you’d like to share.
>
> Oh, can I integrate Nagios with my Cacti? Sorry for all the questions but
> will be very grateful for any responses.
>
> Thanks all very much,
>
> -Will
>
> From: Will Bashlor [mailto:wbash...@atcnetworks.net]
> Sent: Saturday, October 20, 2012 11:23 AM
> To: Nagios Users List
> Subject: [Nagios-users] Monitor Cisco Uptime
>
> Hi list,
>
> I’ve searched to no avail, this is a basic question with hopefully a simple
> answer.
>
> I’m a long time cacti user (windows), I know basic Linux knowledge, new to
> Nagios. I have a fresh install of Debian stable (squeeze) with apt-get
> installed Webmin, ssh, apache2, and Nagios 3.2.1, nagiosql, and whatever
> dependencies. I am trying to setup monitoring of our core Cisco routers and
> switches. I have configured 2 services, ping and uptime. Ping works great of
> course but I can’t get a valid response from check_snmp for uptime. Here’s
> the command I’ve tried from the command line:
>
> root@atcdeb01:/# /usr/lib/nagios/plugins/check_snmp -H x.x.x.x -C public -o
> sysUpTime.0
> no output, it just hangs
>
> I’ve also tried
>
> root@atcdeb01:/# /usr/bin/snmpget -v2c -c public x.x.x.x sysUpTime.0
> sysUpTime.0: Unknown Object Identifier (Sub-id not found: (top) -> sysUpTime)
>
> Obviously with the correct IP and community string
>
> If I try this I get:
>
> root@atcdeb01:/# /usr/bin/snmpget -v2c -c public x.x.x.x 1.3.6.1.2.1.1.3.0
> iso.3.6.1.2.1.1.3.0 = Timeticks: (447923619) 51 days, 20:13:56.19
>
> So using OID names aren’t working. I’ve researched with not much luck.
>
> From here and various other sites I’ve tried…
> http://wiki.debian.org/SNMP
>
> Added “deb http://ftp.us.debian.org/debian squeeze main contrib non-free” to
> /etc/apt/sources.list
>
> apt-get update
>
> Then apt-get install snmp-mibs-downloader
>
> Then “download-mibs”. Restart snmp.
>
> All to no avail. What am I doing wrong? Is there a simple guide I can use so
> check_snmp works with oid names for Cisco and other devices?
>
> Thanks for any help you can provide.
>
> Best Regards,
>
> -Will
>
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