Tracking host and service states with Nagiosgraph

In this recipe, we'll learn how to install and configure Nagiosgraph, a program that integrates with Nagios Core's performance data tools to produce graphs showing long-term information about how checks for hosts and services are performing.

Getting ready

You will need to be running a Nagios Core 3.0 or later server. Nagiosgraph will probably still work with older versions of Nagios Core, but the configuration may be slightly different. The INSTALL document included in the source for Nagiosgraph explains the differences in detail.

You should have a thorough understanding of defining hosts, services, and commands, and be able to install new software as the root user on the monitoring server. You should also be at least familiar with the layout of your Apache HTTPD server on the monitoring system; this recipe will assume it is installed in /usr/local/apache.

Because Nagiosgraph has many Perl dependencies, you will need to have Perl installed...