Nagios is a project with an enormous ecosystem of plugins, add-ons, and extensions, and the community that surrounds it is enormous. With such a broad community, knowing where to start looking for resources is extremely important. If you need help with Nagios, the following section provides the whereabouts of some people and places that will prove invaluable.
Community homepage: www.nagios.org
Commercial homepage: www.nagios.com
Manual and documentation: nagios.sourceforge.net/docs/3_0/
Support forum: support.nagios.com/forum
Wiki: support.nagios.com/wiki/
Blog: labs.nagios.com
Source code: sourceforge.net/projects/nagios/
Nagios projects: exchange.nagios.org
Begin Linux: Central Monitoring with Nagios and NSCA
http://beginlinux.com/blog/2010/03/nagios-central-monitoring/
Roshamboot tech blog: Monitoring ESX/vCenter like a less crazy person
Roshamboot tech blog: Effective User and Contact Management with Nagios
Official forums: http://support.nagios.com/forum
Official mailing list: [email protected]
Official IRC channel: #nagios on Freenode
User FAQ: http://support.nagios.com/wiki/
Nagios entperises tech blog for new developments, documentation, and tutorials: labs.nagios.com
Begin Linux: Linux Training for the Desktop and Server at www.beginlinux.com
Rock Beats Server. Active Nagios community member John Murphy's tutorials and tech tips at roshamboot.org
Follow Ethan Galstad, father of Nagios on Twitter at http://twitter.com/#!/fatherofnagios
Follow Nagios Inc at http://twitter.com/#!/nagiosinc
Follow Michael Guthrie, author of Instant Nagios Starter, Packt Publishing at http://twitter.com/#!/mguthrie88
Follow Begin Linux, author of Linux and Nagios tutorials and training at http://twitter.com/#!/beginlinux
For more open source information, follow Packt Publishing at http://twitter.com/#!/packtopensource