Here users can find basic information about how to install, configure, and manage the Nagios system and networking monitoring tool. The Nagios tutorials listed here are designed for users at the beginner level that want to develop the necessary skills to be a Nagios administrator.
Nagios was created by Ethan Galstad and initially released in the spring of 1999. Licensed under the GNU General Public License version 2 and available as free software, Nagios is currently the most popular computer and network monitoring software application. Nagios monitors hosts and services alerting administrators when things change.
Ever wonder who made the changes to Nagios that hosed the system? Try to get confessions but everyone seemed to not know anything? The new audit log on Nagios 2012 may help track down changes and create greater accountability for administrators.
An object in Nagios is a unit of information, such as a host, service, contact, group, timeperiod, etc. Since these units or objects represent text files, they can inherit properties from other units or objects.