Configure plugin to monitor

[kshkaran2k]

Hi,

I am new to the Nagios tool. Having Nagios core(v4.4.3) along with NRPE(v3.4.1).

I would like to monitor the check_disk plugin of host machine in the Nagios server, but it is giving error. Below is the configuration added in the host-file.

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define service {
      host_name                       system005
      service_description             Check Disk
      check_command                   check_disk
      max_check_attempts              2
      check_interval                  2
      retry_interval                  2
      check_period                    24x7
      check_freshness                 1
      notification_interval           2
      notification_period             24x7
      notifications_enabled           1
      register                        1
}

After adding the configuration, i am restarting the nagios server. It is throwing an error as

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user01@server001:/usr/local/nagios/etc$ sudo service nagios restart
Job for nagios.service failed because the control process exited with error code. See "systemctl status nagios.service" and "journalctl -xe" for details.

response of systemctl status nagios.service

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● nagios.service - Nagios Core 4.4.3
   Loaded: loaded (/lib/systemd/system/nagios.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Wed 2020-02-05 16:59:32 IST; 20s ago
     Docs: https://www.nagios.org/documentation
  Process: 17093 ExecStopPost=/bin/rm -f /usr/local/nagios/var/rw/nagios.cmd (code=exited, status=0/SUCCESS)
  Process: 17088 ExecStop=/bin/kill -s TERM ${MAINPID} (code=exited, status=0/SUCCESS)
  Process: 24921 ExecStart=/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg (code=exited, status=0/SUCCESS)
  Process: 17097 ExecStartPre=/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg (code=exited, status=1/FAILURE)
 Main PID: 24923 (code=exited, status=0/SUCCESS)

Feb 05 16:59:32 server001 nagios[17097]:      Check your configuration file(s) to ensure that they contain valid
Feb 05 16:59:32 server001 nagios[17097]:      directives and data definitions.  If you are upgrading from a previous
Feb 05 16:59:32 server001 nagios[17097]:      version of Nagios, you should be aware that some variables/definitions
Feb 05 16:59:32 server001 nagios[17097]:      may have been removed or modified in this version.  Make sure to read
Feb 05 16:59:32 server001 nagios[17097]:      the HTML documentation regarding the config files, as well as the
Feb 05 16:59:32 server001 nagios[17097]:      'Whats New' section to find out what has changed.
Feb 05 16:59:32 server001 systemd[1]: nagios.service: Control process exited, code=exited status=1
Feb 05 16:59:32 server001 systemd[1]: Failed to start Nagios Core 4.4.3.
Feb 05 16:59:32 server001 systemd[1]: nagios.service: Unit entered failed state.
Feb 05 16:59:32 server001 systemd[1]: nagios.service: Failed with result 'exit-code'.

Please let me know if you need anything else from my side.
Thank you in advanced.

Regards,
Kaushik Karan

[Box293]

Can you please execute the following command on the Nagios server:

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/usr/local/nagios/bin/nagios -vvv /usr/local/nagios/etc/nagios.cfg

What output does it generate?