Notifications and Events in Nagios 3.0- part2

[ Thanks to sanjay
for this link. ]

“The name of the file is rw/nagios.cmd and it is
located in the directory passed as the localstatedir option during
compilation. Following the compilation and installation
instructions and the given guidelines, the file name will be
/var/nagios/rw/ nagios.cmd.

“The communication does not use any authentication or
authorization—the only requirement is to have write access to
the pipe file. An external command file is usually writable by the
owner and the group; the usual group used is nagioscmd. If you want
a user to be able to send commands to the Nagios daemon, simply add
that user to this group.

“A small limitation of the command pipe is that there is no way
to get any results back and so it is not possible to send any query
commands to Nagios. Therefore, by just using the command pipe, you
have no verification that the command you have just passed to
Nagios has actually been processed, or will be processed soon. It
is, however, possible to read the Nagios log file and check if it
indicates that the command has been parsed correctly, if
necessary.”

Complete
Story