Nagios Support Forum

Thanks for all of the input, from everything I've gathered it's a user/group issue.
As to why it is working on the other machines, I have not been able to figure that one out yet.

If I get a definitive solution I will report back.

Thanks guys!

Box293 wrote:IF your user is nrpe then the sudoers line needs to start with nrpe (I'm pretty sure):

I noticed the user is NRPE and added that line to the sudoers file as well, still returned the same results.

Does it help if you put the following line in sudoers on the remote box? nagios ALL = NOPASSWD:/usr/lib/nagios/plugins/check_disk * Just gave it a try and restarted services, but it was unsuccessful. I'm taking a look at the other systems now to look for discrepancies in users/groups, but so far, t...

jdalrymple you are correct: [root@agile-db-u2 xinetd.d]# ps -ef | grep -i nrpe nrpe 19770 1 0 13:14 ? 00:00:00 /usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -d [root@nagios agile-u2]# /usr/lib/nagios/plugins/check_nrpe -H agile-db-u2 -c check_root NRPE: Unable to read output When it is run as root I do rec...

I installed it from the EPEL repos, it is currently running under init.d. **For startup reasons it's running under init.d, but to actually start the command for testing and such, I'm using "service nrpe restart/start/stop" I have tried running it standalone: nrpe -n -c /etc/nagios/nrpe.cfg...

I have seen similar questions asked, but I have not seen one which fits this use case specifically. Basically executing the base check-nrpe to the remote host will return the remote nrpe version: [root@nagios agile-u2]# /usr/lib/nagios/plugins/check_nrpe -H agile-db-u2 NRPE v2.15 When you add a comm...