The purpose of this addon is to allow you to execute Nagios plugins on a remote host in as transparent a manner as possible.
This program runs as a background process on the remote host and processes command execution requests from the check_nrpe plugin on the Nagios host.
Notes: This program is designed to process requests from the check_nrpe plugin on the host(s) running Nagios. It can run as a service under inetd or xinetd (read the docs for info on this), or as a standalone daemon. Once a request is received from an authorized host, NRPE will execute the command/plugin (as defined in the config file) and return the plugin output and return code to the check_nrpe plugin.