Once Nagios and the plugins are installed, Apache is set up for the Web interface, and a minimal configuration is created as previously described, operation of the system can get under way. If you have not already done so, it is recommended that you first spend a bit of time on the test for the
check_icmp plugin, described in 1.4 Installing and Testing Plugins (page 43), to check the initial configuration.
nagios program, which normally runs as a daemon and continually collects data, can also be used to test the configuration:
nagios@linux:~$ /usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg Nagios 3.0rc1 Copyright (c) 1999-2007 Ethan Galstad (http://www.nagios.org) Last Modified: 12-17-2007 ...