We have an odd issue with our Nagios monitoring system.
Our internal network is pretty classic; switches, mail&file server, DMZ…
All hosts are configured in nagios with NO dependencies (current nagios setup is still pretty basic).
Everything works great, services are being monitored and alerts are being send when something goes wrong.
The strange thing is, if I reboot for example my mail server, then all my network switches are down for nagios (which is obviously not the case).
The error I get on my switches is:
“popen timeout received, but no child process”
I don’t find alot of info on this error msg on the net. Maybe you guys can help me?