Using the network map

In this recipe, we'll build on having configured a simple network hierarchy as described in the Creating a network host hierarchy recipe in this chapter by examining this hierarchy in the network map (or status map) in the Nagios Core web interface. The network map takes the form of a generated graphic showing the hierarchy of hosts and their current states. It allows filtering to show specific hosts and clicking hosts to navigate through larger networks.

Getting ready

You will need to run Nagios Core 4.0 or a newer server and have access to its web interface. You will also need permission to view the states of hosts, preferably all hosts. You can arrange this by adding your username in the authorized_for_all_hosts directive, normally in /usr/local/nagios/etc/cgi.cfg; for example, for the user tom, you can execute the following:

authorized_for_all_hosts=nagiosadmin,tom

By default, the nagiosadmin user should have all the necessary permissions to view the complete map.

The...