Nagios Support Forum

Hi,

We are unable to start nrpe on one of the client machines which is a Debian Linux.

root@aeafnxweb01:/etc/init.d# ./nagios-nrpe-server stop
[ ok ] Stopping nagios-nrpe-server (via systemctl): nagios-nrpe-server.service.

root@aeafnxweb01:/etc/init.d# ./nagios-nrpe-server start
[ ok ] Starting nagios-nrpe-server (via systemctl): nagios-nrpe-server.service.

root@aeafnxweb01:/etc/init.d# ./nagios-nrpe-server status
● nagios-nrpe-server.service - Nagios Remote Plugin Executor
Loaded: loaded (/lib/systemd/system/nagios-nrpe-server.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2020-07-10 14:58:49 AEST; 6s ago
Docs: http://www.nagios.org/documentation
Process: 74753 ExecStopPost=/bin/rm -f /var/run/nagios/nrpe.pid (code=exited, status=0/SUCCESS)
Process: 74733 ExecStart=/usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -f $NRPE_OPTS (code=exited, status=2)
Main PID: 74733 (code=exited, status=2)
CPU: 4ms

Jul 10 14:58:49 aeafnxweb01 systemd[1]: Started Nagios Remote Plugin Executor.
Jul 10 14:58:49 aeafnxweb01 systemd[1]: nagios-nrpe-server.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Jul 10 14:58:49 systemd[1]: nagios-nrpe-server.service: Unit entered failed state.
Jul 10 14:58:49 aeafnxweb01 systemd[1]: nagios-nrpe-server.service: Failed with result 'exit-code'.
root@aeafnxweb01:/etc/init.d#



We are unable to telnet the client machine on port 5666 from Nagios production server.

[Nagios Production server ~]$ telnet aeafnxweb01 5666
Trying 10.210.1.5...
telnet: connect to address 10.210.1.5: Connection refused
[[Nagios Production server ~]$

Services are in critical state with the following status information.

(No output on stdout) stderr: connect to address 10.110.2.5 port 5666: Connection refused


However, the server is up.

Is this because of we are uanble to telnet on 5666 that nrpe is not starting?

Awaiting reply.