Re: [Nagios-users] Issues with check_by_ssh
Hi James,
Excuse me for answering so far!
It's correct, I'm doing these checks for a Xenserver host; In fact, these
checks are for several Citrix Xenservers (more than 30).
That you wrote in the first paragraph, already did. I created a local
Nagios user on the Xenserver host with its ssh keys and on the Nagios
server in the same way:
###
##Nagios server##
###
*root@nagioserver:~# cat /etc/passwd | grep -i nagios*
*nagios:x:106:116::/var/lib/nagios:/bin/bash*
*
*
*nagios@nagioserver:~/.ssh$ ls -l*
*-rw-r--r-- 1 nagios nagios 399 2012-08-14 12:37 authorized_keys*
*-rw--- 1 nagios nagios 1675 2012-08-14 11:11 id_rsa*
*-rw-r--r-- 1 nagios nagios 402 2012-08-14 11:11 id_rsa.pub*
*-rw-r--r-- 1 nagios nagios 442 2012-08-14 11:08 known_hosts*
###
##XENSERVER##
###
*[root@ORL-XEN-02 ~]# cat /etc/passwd | grep -i nagi*
*nagios:$1$vBr1twsi$6AL.hoMnGK8T1WgZ0.Ov2/:500:500::/home/nagios:/bin/bash*
*
*
*[nagios@ORL-XEN-02 .ssh]$ ls -l*
*-rw--- 1 nagios nagios 402 Aug 14 12:51 authorized_keys*
*-rw--- 1 nagios nagios 1671 Aug 14 12:57 id_rsa*
*-rw-r--r-- 1 nagios nagios 399 Aug 14 12:57 id_rsa.pub*
*-rw-r--r-- 1 nagios nagios 788 Aug 14 13:00 known_hosts*
Also I use the "xentop" command to get the CPU results in my script, but I
had to set the sudoers file in the Xenserver because the "xentop" command
only root is be able to execute it.
This is the script and sudoers file.
*#!/bin/bash*
*CRITICAL_CPU='95'*
*WARNING_CPU='80'*
*
*
*#Porcentage de CPU en uso*
*cpu_stat=$(sudo /usr/sbin/xentop -bi2 | grep Domain-0 | awk '{print $4}' |
tail -1 | cut -d '.' -f1)*
*#cpu_stat='80'*
*
*
*#Evaluamos estado*
*if [ $cpu_stat -ge $CRITICAL_CPU ] ; then*
*echo “CRITICAL:CPU%= $cpu_stat”*
*exit 2*
*elif [ $cpu_stat -ge $WARNING_CPU ] ; then*
*echo “WARNING: CPU%= $cpu_stat”*
*exit 1*
*else*
*echo “OK:CPU%= $cpu_stat”*
*exit 0*
*fi*
##
*## Allow root to run any commands anywhere*
*root ALL=(ALL) ALL*
*nagios ALL=(ALL) NOPASSWD:ALL*
*
*
*
*
By the terminal, all works fine:
>From Nagios server
*
*
*nagios@nagioserver:~$ /usr/lib/nagios/plugins/check_by_ssh -l nagios -H
172.16.31.2 -C "/usr/lib/nagios/plugins/check_Xencpu" -i
/var/lib/nagios/.ssh/id_rsa*
*“OK:CPU%= 3”*
>From Xenserver
*[nagios@ORL-XEN-02 plugins]$ ./check_Xencpu *
*“OK:CPU%= 5”*
In your second paragraph, What did you want to say with the resource.cfg?
Do you have an example? I don't understand very well.
Finally, the service definition is passing 4 arguments as the command
definition.
*command_line /usr/lib/nagios/plugins/check_by_ssh (1)-l '$ARG1$' (2)-H
'$HOSTADDRESS$' (3)-C '$ARG2$' (4)-i '$ARG3$'*
*check_command
check_by_ssh_xentop!(1)root!(2)ipxenserver!(3)/usr/lib/nagios/plugins/check_Xencpu.sh!(4)/root/.ssh/id_rsa!
*
*
*
Help me!!! LOL xD
Eduardo
2012/8/16 James Osbourn
> I see that you are talking to a XenServer host. I am performing something
> similar. What I have had to do to achieve results is to create a local
> Nagios user on the XenServer host which has SSH keys to allow the server
> Nagios user to connect and avoid using any root SSH keys which the Nagios
> user is unlikely to be able to read.
>
> ** **
>
> Once you have connected to the XenServer host check that the Nagios user
> can execute the commands you are running. If you are simply looking at the
> dom0 as if it was a host and checking items such as cpu, memory or disk
> usage then you should not have a problem. If you are executing XenServer
> xe commands then you will need to pass a username and password that has
> access to the XenServer to run these commands. This will be root or
> another account that has been granted access. You can store these values
> in the resources.cfg file and pass them in your command definition.
>
> ** **
>
> I have also noticed that your service definition is passing 4 arguments,
> where your command definition is only using 3 arguments and the
> hostaddress. It would be worth checking to make sure that you are passing
> the correct arguments from your service and command definitions to your
> remote host.
>
> ** **
>
> James
>
> ** **
>
> *From:* Eduardo Montes de Oca S. [mailto:edren...@gmail.com]
> *Sent:* 15 August 2012 18:52
>
> *To:* nagios-users@lists.sourceforge.net
> *Subject:* [Nagios-users] Issues with check_by_ssh
>
> ** **
>
> Hi list,
>
> ** **
>
> I have some issues with the plugin "check_by_ssh". In particular, there is
> one error:
>
> ** **
>
> When I run a shell script located in another server, from the Nagios
> server using the check_by_ssh plugin, I don&#x
Re: [Nagios-users] Issues with check_by_ssh
Hi friends,
Also, I've been doing some tests with the user "nagios" but I obteined the
same result.
In this case, I tried in the context of the user "Nagios" but it works
through the terminal:
*nagios@nagioserver:~$ /usr/lib/nagios/plugins/check_by_ssh -l nagios -H
172.16.31.2 -C "/usr/lib/nagios/plugins/check_Xencpu" -i
/var/lib/nagios/.ssh/id_rsa*
*“OK:CPU%= 10”*
If I set up my definition of the command:
*#Check Hypervisor*
*define service{*
*use generic-service*
*host_name ORLANDO*
*service_description Hypervisor CPU*
*check_command
check_by_ssh_xentop!nagios!172.16.31.2!/usr/lib/nagios/plugins/check_Xencpu!/var/lib/nagios/.ssh/id_rsa!
*
*}*
But, the result is not correct:
[image: Imágenes integradas 1]
Regards!
Eduardo
** **
>
> Hi list,
>
> ** **
>
> I have some issues with the plugin "check_by_ssh". In particular, there is
> one error:
>
> ** **
>
> When I run a shell script located in another server, from the Nagios
> server using the check_by_ssh plugin, I don't have any errors and I can see
> the result of the script, like this:
>
> ** **
>
> *root@nagioserver# ** /usr/lib/nagios/plugins/check_by_ssh
> -l root -H "ipxenserver" -C /usr/lib/nagios/plugins/check_Xencpu
> “OK:CPU%= 3”*
>
> ** **
>
> But, by any strange reason, when I configure the check for Nagios presents
> the results in its interface, I have the error:
>
> [image: Imágenes integradas 1]
>
> ** **
>
> I have made the ssh authorization keys in both servers (Nagios and Xen), I
> configured the users, permissions,etc. And I can't to do this work it.
>
> ** **
>
> Could someone help me solve this problem
>
> ** **
>
> ** **
>
> This is a part of my definition files:
>
> *#XENServer*
>
> *define command {*
>
> * command_name check_by_ssh_xentop*
>
> * command_line /usr/lib/nagios/plugins/check_by_ssh -l
> '$ARG1$' -H '$HOSTADDRESS$' -C '$ARG2$' -i '$ARG3$'*
>
> * }*
>
> *#Hypervisor check*
>
> *define service{*
>
> *use generic-service*
>
> *host_name ORLANDO *
>
> *service_description Hypervisor CPU*
>
> *check_command
> check_by_ssh_xentop!root!ipxenserver!/usr/lib/nagios/plugins/check_Xencpu.sh!/root/.ssh/id_rsa!
> *
>
> *}*
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> Regards!
>
> ** **
>
> ** **
>
> --
>
> *IC.** Eduardo Montes de Oca Sánchez
> *Skype: edrendar
> Gmail: edren...@gmail.com
> MSN: ed_montesde...@hotmail.com
> Movil: 5523419886
>
> https://linuxcounter.net/cert/549074.png
>
>
> --
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> ___
> 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
>
--
*IC.** Eduardo Montes de Oca Sánchez
*Skype: edrendar
Gmail: edren...@gmail.com
MSN: ed_montesde...@hotmail.com
Movil: 5523419886
https://linuxcounter.net/cert/549074.png
<>--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
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
[Nagios-users] Issues with check_by_ssh
Hi list,
I have some issues with the plugin "check_by_ssh". In particular, there is
one error:
When I run a shell script located in another server, from the Nagios server
using the check_by_ssh plugin, I don't have any errors and I can see the
result of the script, like this:
*root@nagioserver# /usr/lib/nagios/plugins/check_by_ssh
-l root -H "ipxenserver" -C /usr/lib/nagios/plugins/check_Xencpu
“OK:CPU%= 3”*
*
*
But, by any strange reason, when I configure the check for Nagios presents
the results in its interface, I have the error:
[image: Imágenes integradas 1]
I have made the ssh authorization keys in both servers (Nagios and Xen), I
configured the users, permissions,etc. And I can't to do this work it.
Could someone help me solve this problem
This is a part of my definition files:
*
#XENServer
*
*
define command {
command_name check_by_ssh_xentop
command_line /usr/lib/nagios/plugins/check_by_ssh -l
'$ARG1$' -H '$HOSTADDRESS$' -C '$ARG2$' -i '$ARG3$'
}
*
*#Hypervisor check*
*define service{*
*use generic-service*
*host_name ORLANDO *
*service_description Hypervisor CPU*
*check_command
check_by_ssh_xentop!root!ipxenserver!/usr/lib/nagios/plugins/check_Xencpu.sh!/root/.ssh/id_rsa!
*
*}*
Regards!
--
*IC.** Eduardo Montes de Oca Sánchez
*Skype: edrendar
Gmail: edren...@gmail.com
MSN: ed_montesde...@hotmail.com
Movil: 5523419886
https://linuxcounter.net/cert/549074.png
<>--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
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
[Nagios-users] Issues with check_by_ssh
Hi list,
I have some issues with the plugin "check_by_ssh". In particular, there is
one error:
When I run a shell script located in another server, from the Nagios server
using the check_by_ssh plugin, I don't have any errors and I can see the
result of the script, like this:
*root@nagioserver# /usr/lib/nagios/plugins/check_by_ssh
-l root -H "ipxenserver" -C /usr/lib/nagios/plugins/check_Xencpu
“OK:CPU%= 3”*
*
*
But, by any strange reason, when I configure the check for Nagios presents
the results in its interface, I have the error:
[image: Imágenes integradas 1]
I have made the ssh authorization keys in both servers (Nagios and Xen), I
configured the users, permissions,etc. And I can't to do this work it.
Could someone help me solve this problem
This is a part of my definition files:
*
#XENServer
*
*
define command {
command_name check_by_ssh_xentop
command_line /usr/lib/nagios/plugins/check_by_ssh -l
'$ARG1$' -H '$HOSTADDRESS$' -C '$ARG2$' -i '$ARG3$'
}
*
*#Hypervisor check*
*define service{*
*use generic-service*
*host_name ORLANDO *
*service_description Hypervisor CPU*
*check_command
check_by_ssh_xentop!root!ipxenserver!/usr/lib/nagios/plugins/check_Xencpu.sh!/root/.ssh/id_rsa!
*
*}*
Regards!
--
*IC.** Eduardo Montes de Oca Sánchez
*Skype: edrendar
Gmail: edren...@gmail.com
MSN: ed_montesde...@hotmail.com
Movil: 5523419886
https://linuxcounter.net/cert/549074.png
<>--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
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
