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Answer» The Nagios REMOTE Plugin Executor addon is designed to allow you to execute Nagios plugins on remote Linux/Unix machines. The main
reason for doing this is to allow Nagios to monitor “local” resources (like CPU load, memory usage, etc.) on remote machines. Since these public resources are not usually exposed to external machines, an agent like NRPE MUST be installed on the remote Linux/Unix machines.
The NRPE addon CONSISTS of two pieces:
- The check_nrpe plugin, which resides on the local monitoring MACHINE
- The NRPE daemon, which runs on the remote Linux/Unix machine
When Nagios needs to monitor a resource of service from a remote Linux/Unix machine:
- Nagios will execute the check_nrpe plugin and tell it what service needs to be checked
- The check_nrpe plugin contacts the NRPE daemon on the remote host over an (optionally) SSL-protected connection
- The NRPE daemon runs the appropriate Nagios plugin to check the service or resource
- The results from the service check are passed from the NRPE daemon back to the check_nrpe plugin, which then returns the check results to the Nagios process.
The Nagios Remote Plugin Executor addon is designed to allow you to execute Nagios plugins on remote Linux/Unix machines. The main
reason for doing this is to allow Nagios to monitor “local” resources (like CPU load, memory usage, etc.) on remote machines. Since these public resources are not usually exposed to external machines, an agent like NRPE must be installed on the remote Linux/Unix machines. The NRPE addon consists of two pieces: When Nagios needs to monitor a resource of service from a remote Linux/Unix machine:
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