Nagios Support Forum

Hi,

I was setting up nrpe on a group of clients servers. Everything went well until I restart nagios3 on the monitor server. All the existing client servers work well in green but suddenly turned red with error 'Return code of 127 is out of bounds - plugin may be missing'. On the monitoring server, check load, user, ssh and total process are green, only check http is red with 127 error code. I checked the plug-in folder and didn't see missing plugin, '/usr/lib/nagios/plugins' and '/usr/local/nagios/libexec'. Would you please take a look?

Thanks!
Stephanie

What happens when you test the plugin from the Nagios server to the client when at the CLI?

Post that command here along with the full output.

Hi Box293, never mind, after I reinstalled the nagios-plug the error is gone. Thanks for the quick response!