Nagios 2.0 Administration explains how to install and administer Nagios,
and architect Nagios installations. The book also covers how to deploy
agents and plug-ins, and monitor a variety of different assets. These
assets include applications across a variety of platforms and operating
systems, Additional topics include security, redundancy and failover,
integration with other tools (like MRTG and Snort), and plug-in
development.