In this recipe, you'll learn how to use the
nagiostats utility to get some statistics about the performance of a Nagios Core process and the states of the hosts and services that it monitors.
Optionally, we'll also show you how to use the
mrtg.cfg file built in the Nagios Core source distribution at the
./configure time to set up graphs built by
mrtg (Multi-Router Traffic Grapher) and to link to the graphs in the menu of the web interface. The Nagios Core source distribution includes some ready-made files to assist with this, which we'll use here.
You will need a Nagios Core 4.0 server or newer server installed and running to invoke
nagiostats. Older versions do include the utility, but ...