Icinga is a modular monitoring framework for hosts, services, and networks, based on the Nagios project. It is designed to be easy to understand and modify to fit any need.

Features include:
* monitoring of network services via ping, SMTP, POP3, HTTP, NNTP, or
TCP port;
* plugin interface to allow for user-developed service checks
* contact notifications when problems occur and get resolved (via
email, pager, or user-defined method)
* support for proactive problem resolution (handlers can be defined to
be run during service or host events)
* web output: current status, notifications, problem history, log
file, etc.
This is a metapackage which depends on the Icinga core and the web front-end.