Step 5 - Understanding the Configuration files of Nagios

Lets Understand the Configuration overview of Nagios.

As per my installation all the configuration files are stored in

--- /usr/local/nagios/etc/ ---- Directory

The main configuration file

/usr/local/nagios/etc/nagios.cfg

The above file contains a number of directives that affect how Nagios operates.

Object Configuration Files

Object configuration files (historically called "host" configuration files) are used to define hosts, services, hostgroups, contacts, contactgroups, commands, etc. This is where you define what things you want monitor and how you want to monitor them.

CGI Configuration File

/usr/local/nagios/etc/cgi.cfg

This contains a number of directives that affect the operation of the CGIs

When you look at the directory /usr/local/nagios/etc

You will find the following files :

cgi.cfg-sample
checkcommands.cfg-sample
contactgroups.cfg-sample
contacts.cfg-sample
dependencies.cfg-sample
escalations.cfg-sample
hostgroups.cfg-sample
hosts.cfg-sample
misccommands.cfg-sample
nagios.cfg-sample
resource.cfg-sample
services.cfg-sample
timeperiods.cfg-sample

You will need to take a backup of the above files and rename the *.cfg-sample to *.cfg