Is there any possibilty to monitor processes with nagios? I found the check_procs command, which I can't use because it doesn't let me specify a file to read the PID from. Also, I don't seem to find anything about this on Google so perhaps I am having some misconceptions what nagios is actually supposed to do?
My scenario is that I have a webserver which has a few VirtualHosts. I can monitor those with check_http just fine.
However, one of the Sites is dependent on a background process which I also want to monitor with nagios.