nsca - 2.9.2-2 main

This addon allows you to send service check results to a central
monitoring server running Nagios in a reasonably secure manner.
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Nagios is a monitoring and management system for hosts, services and
networks.
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Nagios' features include:
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- Monitoring of network services (via TCP port, SMTP, POP3, HTTP, NNTP,
PING, etc.)
- Plugin interface to allow for user-developed service checks
- Contact notifications when problems occur and get resolved (via email,
pager, or user-defined method)
- Ability to define event handlers to be run during service or host events
(for proactive problem resolution)
- Web output (current status, notifications, problem history, log file,
etc.)
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Nagios was written in C and is designed to be easy to understand and modify
to fit your own needs.