How to add new servers to Nagios

Steps to add new servers to Nagios:

To add a host

1. Go to the folder /usr/local/nagios/etc

2. Add entires in following files.

> hosts.cfg
> hostgroups.cfg
> services.cfg

Note: Please make sure that you are backing up these files with date & time before modifying it.

To check syntax

# cd ../libexec

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

Finally, restart Nagios as given below.

Stop Nagios.

# /usr/local/etc/rc.d/nagios stop

Check whether Nagios is running.

# ps aux | grep nagios

If so, kill all Nagios.

# kill -9 `pgrep nagios`

Start Nagios again.

# /usr/local/etc/rc.d/nagios start

Thank you.

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