Nagios Support Forum

Posted: **Fri Mar 31, 2017 12:34 pm**

tgriep wrote:Can you post the nrpe.cfg file from the /etc/init folder?
I have a feeling it is the wrong file.

See attached.

Posted: **Fri Mar 31, 2017 1:37 pm**

This is what the init script is trying to run.

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -f

Can you run that command as root in a shell and see if it starts up?

Posted: **Mon Apr 03, 2017 9:26 am**

tgriep wrote:This is what the init script is trying to run.
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/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -f
Can you run that command as root in a shell and see if it starts up?

Nothing changes. I still can't get nrpe to run. Unrecognized service:

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[root@ip-xx-xx-xx-xx ~]# service nrpe start
nrpe: unrecognized service
[root@ip-xx-xx-xx-xx ~]#

Posted: **Mon Apr 03, 2017 9:49 am**

That error is caused by a missing service config file on your system but if the software compiled on your server, you should be able to start NRPE in daemon mode by running.

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/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -f

Did this run on your server?

Posted: **Mon Apr 03, 2017 10:04 am**

It doesn't show anything :

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/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -f

Then I test nrpe:

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/usr/local/nagios/libexec/check_nrpe -H localhost -c check_load
connect to address 127.0.0.1 port 5666: Connection refused
connect to host localhost port 5666: Connection refused

Posted: **Mon Apr 03, 2017 10:15 am**

Run the ps command to see if it is running in on the server.

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ps -ef |grep nrpe

Did you configure the firewall to allow port 5666 inbound traffic?

Posted: **Mon Apr 03, 2017 10:33 am**

This is what I get:

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root     21423 21185  0 15:25 pts/0    00:00:00 grep nrpe

Posted: **Mon Apr 03, 2017 11:48 am**

The output of the PS command doesn't show the NRPE Agent running at all.
You would have to look at the log files to see why it didn't start up when you manually ran the command.
Take a look in the /var/log/messages log file to see why it didn't start up.
Or you can just install and run the older pre-compiled version of the Agent.

Posted: **Mon Apr 03, 2017 12:28 pm**

I don't see anything in the logs.

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nrpe[21779]: Starting up daemon
Apr  3 nrpe[21779]: Server listening on 0.0.0.0 port 5666.
Apr  3 nrpe[21779]: Server listening on :: port 5666.
Apr  3 nrpe[21779]: Listening for connections on port 5666
Apr  3 nrpe[21779]: Allowing connections from: xx.xx.xxx.xx

but I still get the connection refused error.

I guess I have no other choice than installing the older version.

Posted: **Mon Apr 03, 2017 12:34 pm**

Try running it like this and see if it stays running on the system.

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/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

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