Nagios Support Forum

I have a:
When I run a job using that command line I get

(Return code of 126 is out of bounds - plugin may not be executable)

I issue the command (as root): change the command to
and reload; no other changes. Now it works. I've tried this with many different directories and /usr/lib64/nagios/plugins, /usr/lib64/nagios/plugins/local (I created) work; what (if anything) else might work? I know this may be a Red Hat configure choice or packaging issue; if so and someone knows, please let me know.

Thanks.

While I don't actually know why this is happening, I would consider this a feature not a bug.

You should not be allowed to execute any of the default *nix bin directories with the NRPE agent considering it can be used to execute arbitrary commands (particularly when args are enabled). Even in a secure walled off environment that's still a pretty major security no-no.

If I was forced to guess... I would probably say the NRPE agent is probably coded to block access as a safety precaution.