nagios_nrpe/contrib/README.nrpe_check_control

------- Forwarded message follows -------
Date sent:      	Fri, 30 Mar 2001 18:51:48 -0500
From:           	adam.bowen@<>
Subject:        	Event Handler
To:             	[nagios@nagios.org]

I am attaching the source code for an event handler I wrote to 
control checks using nrpe.  I add the following check to all remote hosts
using nrpe:

service[<host Hame>]=NRPE;0;24x7;3;5;1;<contactgroup>;120;24x7;1;1;0;nrpe_check_control;check_tcp!-p 5666

I added this line to the commands.cfg file:

command[nrpe_check_control]=$USER2$/nrpe_check_control $SERVICESTATE$ $STATETYPE$ $SERVICEATTEMPT$ "$HOSTNAME$"

When the NRPE service check listed above has 3 failed connection
attempts, it will run the nrpe_check_control which will search the
services file for all services for $HOSTNAME$ that use the check_nrpe.

It will then request that all these services be disabled.  When the
NRPE check returns to the OK state, it will request that all services
using check_nrpe be re-enabled. This will prevent unnecessary e-mail
when there is a problem with the NRPE daemon.  This does require 
that external commands be enabled.

(See attached file: nrpe_check_control.c)

I thought some other [Nagios] users might find this useful.

Adam G. Bowen