Nagios Support Forum

I saw something online that says that you can restart a server's service/reboot a server via nagios. Is this true?

As an example, let’s say that DHCP failed on a server. We would want Nagios to monitor the DHCP service, then, on failure, send an email and maybe even restart the server. Is it possible to restart the DHCP service or server?

You'll want to look into Event Handlers:

http://assets.nagios.com/downloads/nagi ... ios-XI.pdf

I am attempting to follow the instructions, but the nano command will not execute the file. I am getting an error:

-bash: nano: command not found

nano is just a text editor. You can either use vi as an alternative or:

Thank you. That worked. Now we are not getting the correct output for the macros test. It is saying after we update the .sh file with the following info we should get "The host event_handler_test has changed to a HARD DOWN state at Mon Jun 3 22:26:32 CDT 2013
with the error: TEST" but we get "The host has changed state":


#!/bin/bash
HOSTNAME=$1
HOSTSTATE=$2
HOSTSTATETYPE=$3
HOSTOUTPUT=$4
DATE=$(date) #sets the DATE variable to the output of the 'date' command
echo "The host $HOSTNAME has changed to a $HOSTSTATETYPE $HOSTSTATE state at $DATE with the error:
$HOSTOUTPUT" > /tmp/hostinfo.txt

Your command should look something like this:
Hope this helps.