Where to define command in nagios

centos5nagiosnrpe

I want to define new command in nagios for remote host but i can't find out where should i write this thing

define command   {


}

on remote host i have only this file

 vim /usr/local/nagios/etc/nrpe.cfg

Should i write that in above file or i have to write that on nagios host not on remote computer

There is no commands.cfg file on my remote host

Best Answer

Which Nagios packages do you have installed? On my CentOS 5.4 boxes, the Nagios config is in /etc/nagios. Take a look there. The filename is /etc/nagios/nagios.cfg

Edit

On the remote side, you need an entry in the nrpe.cfg that looks like command[something]=/some/path/to/command/binary. Then, on the Nagios host, you do your define service { }. The important part is that the command to run is going to look like check_nrpe!something, where something is the same as the one in nrpe.cfg.

Related Solutions

Cannot get check_uptime plugin for Nagios to work. Unknown status

Nver mind. I figured it out.

Looks like I have to invoke check_nrpe in /usr/local/nagios/etc/objects/hosts/machine1.cfg as follows:

    define service{
        use                             generic-service
        host_name                       machine1
        service_description             Uptime
        check_command                   check_nrpe!check_uptime
}

Edit: It also looks that the check_uptime command should not be invoked with the -H $HOSTADDRESS$ parameter in commands.cfg on the server end. Once that is removed, it will work on the server.

Hope this helps somebody else.

Nagios NRPE: Unable to read output

Since I see there is no problem with the line you added to /etc/sudoers file:

nagios  ALL=(ALL) NOPASSWD: /usr/lib/nagios/plugins/

I suspect that there is a later entry in /etc/sudoers that override NOPASSWD option and that is reason for http-restart still asking for a password. With your above config, is nagios user a member of sudo group?

Just try to move this line to the end of /etc/sudoers file to exclude this possibility. Also make sure the nrpe user does not need a tty, by setting Defaults:nrpe !requiretty.

UPDATE Wed Jun 27 21:24:21 ICT 2012

To make the NRPE work, you also need to add sudo to your command definition in nrpe.cfg:

command[restart_http]=/usr/bin/sudo /usr/lib/nagios/plugins/http-restart

Best Answer

Related Solutions

Cannot get check_uptime plugin for Nagios to work. Unknown status

Nagios NRPE: Unable to read output

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