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New to Nagios, help with plugins

Posted: Thu Oct 08, 2020 1:38 pm
by malikben9
Hello everyone, I'm new to Nagios so I've just been following some tutorials. I'm currently trying to get an Ubuntu 16 VM with Nagios to get information from a CentOS 7 VM running a bunch of nrpe plugins.

On the CentOS server, I made port 5666 and nrpe available on the firewall, and I also configured the cfg file on the nagios side. Additionally, I also tested that the plugins were working on the CentOS server. However, when I look at the status checks on the Nagios web interface side, it gives me the message "Return code of 127 is out of bounds. Check if plugin exists".

After looking around on the internet for answers, I have no idea what could be causing this. Could anyone give me ideas or troubleshooting tips? Thanks.

Re: New to Nagios, help with plugins

Posted: Thu Oct 08, 2020 5:25 pm
by benjaminsmith
Hi,

Welcome to the Nagios Community Forum! Thanks for joining. We have a kb article on troubleshooting that error. Please start by following the article to debug this and let us know how it goes.

NRPE - Return Code Of 127 Is Out Of Bounds - Plugin May Be Missing

--Benjamin