Nagios allows applications and event handlers to send out passive check results for host objects. In order to use them, the host needs to be configured to accept passive checks results.

In order to be able to submit passive check results, we need to configure Nagios to allow the sending of passive check results, and set the host objects to accept them.

Submitting passive host check results to Nagios requires sending a command to the Nagios external command pipe. This way, the other applications on your Nagios server can report the status of the hosts.

The command to submit passive checks is PROCESS_HOST_CHECK_RESULT (visit http://www.nagios.org/developerinfo/externalcommands/commandinfo.php? command_id=115). This command accepts the host name, status code, and the textual output from a check. The host status code should be 0 for an UP state, 1 for DOWN and 2 for an UNREACHABLE state.

The following is a sample script that will accept the host name, status code, and...