Howtoforge shows you how to install Icinga on an Ubuntu 11.10 server

Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. It is a fork of Nagios. This tutorial explains how to install Icinga on an Ubuntu 11.10 server to monitor this server and another Ubuntu 11.10 server.

  Server Monitoring With Icinga On Ubuntu 11.10