The previous chapter has described what Nagios is, the basic concepts of monitoring, and types of objects in Nagios. This chapter describes how to install Nagios and the standard Nagios plugins. The process described here does not take advantage of any packaging systems that are currently available on the majority of operating systems.
In this chapter, we will cover the following points:
How to upgrade Nagios from a previous version
Installing Nagios prerequisites (software, users, and groups)
Obtaining and compiling Nagios from source
Installing Nagios and setting up a system service
Configuring Nagios with a basic set of objects
Setting up basic notifications
Using templates and object inheritance