nagios-plugins-basic 1.4.15-4ubuntu2 (amd64 binary) in ubuntu precise

 Nagios is a host/service/network monitoring and management system. It has
 the following features:
 .
  * 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, history, log file, etc.)
 .
 This package provides a basic set of plugins with minimal external
 dependencies. It is not likely to be useful by itself unless you are
 installing a remote "satellite" server (using nagios-nrpe-server or nsca,
 for example).