icinga nrpe executes locally instead of server

Question

I am very new to icinga. In fact I finished setting it up today.

I am trying to monitor a bunch of stuff on my nrpe machines. I set up my services in /etc/icinga/objects/my.server.com.cfg and configured it like so:

define host{
        use                     generic-host   
        host_name               my.server.com
        alias                   my.server.com
        address                 123.45.678.999
        }

define service{
        use                             generic-service
        host_name                       my.server.com
        service_description             Total Processes
        check_command                   check_procs!250!400
        }

When looking in the admin interface I was wondering why all servers are having the same amount of processes active, but after checking the command icinga executes, I realized that all commands are being executes on the icinga server itself rather than the nrpe machine.

Where is my mistake? nrpe.cfg is set up correctly to whitelist my icinga server. Telnet connection works fine.

Answer 1

https://wiki.icinga.org/display/howtos/Setting+up+NRPE+with+Icinga has the details, but you need to set up a proxy command. Something similar to:

define command {
    command_name check_nrpe_command
    command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -a $ARG2$
}

Once you have that, you can set up your remote commands:

define service {
     [stuff]
     check_command check_nrpe_command!check_procs!250!400
     [more stuff]
 }

What it does is builds a local check that calls the local NRPE checker to query the remote system.