Informix Monitoring

[donnyforbes]

what I have notice is the following below in the nrpe.cfg file worked except the informix.sh one.

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command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200
command[check_disk_new]=/usr/local/nagios/libexec/check_folder_size $ARG1$
command[check_informix]=/usr/local/nagios/libexec/check_informix.sh

I am not sure why I am getting this error below. Can someone please assist me with this I need to get in working for our production.

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[root@nag libexec]# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.42 -c check_informix
NRPE: Command 'check_informix' not defined
[root@nag libexec]#

Please advise so I can get this working.

[donnyforbes]

Can someone please assist me with this? I really would like to get this working today.

Thanks

[scottwilkerson]

did you edit the nrpe.cfg on the remote machine or the nagios machine?

It needs to be edited on the remote machien (client), and then xinetd restarted on that machine

[donnyforbes]

no there is nothing in the nrpe on the remote machine. I was not sure if there needed to be. Do I put this command below in that nrpe.cfg file on the remote machines?

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command[check_informix]=/usr/local/nagios/libexec/check_informix.sh

There is nothing i that file now. How could the others ones work if there is nothing in there? is that different?

[donnyforbes]

I added this to the remote server (client)

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#command[check_users]=/usr/local/nagios/libexec/check_users -w $ARG1$ -c $ARG2$
#command[check_load]=/usr/local/nagios/libexec/check_load -w $ARG1$ -c $ARG2$
#command[check_disk]=/usr/local/nagios/libexec/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
#command[check_procs]=/usr/local/nagios/libexec/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$
command[check_informix]=/usr/local/nagios/libexec/check_informix.sh

then I did systemctl restart xinetd &&& tested again and got this ......

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[root@nag libexec]# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.42 -c check_informix
NRPE: Unable to read output

why would I get this now?

Here is what I don't understand .. From the NAGIOS server I can run the following command and get these results, and this command is not added to the NRPE on the remote server (client) .

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[root@nag libexec]# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.42 -c check_procs
PROCS OK: 671 processes | procs=671;;;0;

How would this work and not the check_informix.sh ??

I tried changing it from .sh to check_informix in the nrpe.cfg on the remote server as well.

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command[check_informix]=/usr/local/nagios/libexec/check_informix

then try to run the following command below and go the same output please see...

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[root@nag libexec]# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.42 -c check_informix
NRPE: Unable to read output
[root@nag libexec]#

[donnyforbes]

scottwilkerson can you please advise on this issue so that I can get this working please....

[tgriep]

I have included a link to a KB article that has some solutions for the Unable To Read Output message.
https://support.nagios.com/kb/article/n ... t-620.html

In addition to this article, make sure the plugin is executable by the nagios user.
To test this, login to the remote server, change to the nagios user and run the plugin.

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su - nagios
/usr/local/nagios/libexec/check_informix.sh

If the plugin does run but does not output any data at all, that would cause the error as well.
The plugin has to output something when the check passes as well as fails.

[donnyforbes]

I have included a link to a KB article that has some solutions for the Unable To Read Output message.
https://support.nagios.com/kb/article/n ... t-620.html

In addition to this article, make sure the plugin is executable by the nagios user.
To test this, login to the remote server, change to the nagios user and run the plugin.

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su - nagios
/usr/local/nagios/libexec/check_informix.sh

If the plugin does run but does not output any data at all, that would cause the error as well.
The plugin has to output something when the check passes as well as fails.

Here is what I got when doing this.

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[nagios@huey ~]$ /usr/local/nagios/libexec/check_informix.sh
-bash: /usr/local/nagios/libexec/check_informix.sh: Permission denied
[nagios@huey ~]$

[tgriep]

The permissions are not set on the plugin, run this to fix that.

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chown nagios.nagios /usr/local/nagios/libexec/check_informix.sh
chmod a+x /usr/local/nagios/libexec/check_informix.sh

Then try it again.

[donnyforbes]

changed the permission to 777 and ownership to nagios and this time when running got this

[

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nagios@huey ~]$ /usr/local/nagios/libexec/check_informix.sh
USE: check_ifx informixdir informixserver

         informixdir    = Informix directory
         informixserver = server name
[nagios@huey ~]$ /usr/local/nagios/libexec/check_informix.sh
USE: check_ifx informixdir informixserver

         informixdir    = Informix directory
         informixserver = server name
[nagios@huey ~]$

here is what the listing says for that directory now .. when I switched back to root

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[root@huey ~]# ls -l /usr/local/nagios/libexec/check_informix.sh
-rwxrwxrwx. 1 nagios nagios 684 Nov 15 06:58 /usr/local/nagios/libexec/check_informix.sh