SSH Monitoring

I am currently using PRTG to monitor if a process is running on 43 Raspberry Pi’s running Raspbian. Every 60 seconds PRTG logs in (using SSH) on all the Pi’s and runs a script (located on the Pi). If the script echo’s YES, it means the process is running, if it echo’s NO, the process is not running.

Can I use LibreNMS to replace PRTG, without making any changes whatsoever on the Pi’s?

You could write a nagios plugin and use it via service checks

Try this