UCS (Univention Corporate Server) Nagios NRPE Command ... not defined

Posted by: lordvan 4 years, 10 months ago

(0 comments)

So I had errors in my nagios for UCS for the backup domain server and fileserver (after an upgrade probably):

these services were CRITICAL on several servers:

• UNIVENTION_DISK_ROOT
• UNIVENTION_JOINSTATUS
• UNIVENTION_LOAD
• UNIVENTION_NCSD2
• UNIVENTION_PACKAGE_STATUS
• UNIVENTION_SMTP2
• UNIVENTION_SWAP

The errors were like "NRPE: Command 'UNIVENTION_DISK_ROOT' not defined" .. and so on ...

After a bit of searching i found this help forum page (in german): https://help.univention.com/t/nagios-zeigt-nach-update-auf-4-3-0-fur-slave-dc-nrpe-command-not-defined/8261/21

that in the end helped me solve the problem.

the following commands are what I did run (not all may be needed on each system, since for some reason one package was missing on the fileserver but not the backup domain server (also i am not sure if it is 100% needed but it works now so ..)

apt-get install nagios-nrpe-server nagios-nrpe-plugin univention-nagios-s4-connector # make sure all packages are installed
systemctl restart nagios-nrpe-server.service # restart the service
univention-directory-listener-ctrl resync nagios-client # resync - settings i guess?

I had ran the following 2 commands before the above too, but just got errors..

sudo -u nagios /usr/lib/nagios/plugins/check_univention_s4_connector_suidwrapper 
sudo -u nagios /usr/lib/nagios/plugins/check_univention_samba_drs_failures_suidwrapper

now the first of the 2 just gives me this: S4CONNECTOR OK: Connector not activated (connector/s4/autostart =! true)
The second one still gives command not found, but seems to not matter in my case.

Then i re-scheduled the nagios checks because I didn'T feel like waiting 10 minutes..then everything was ok again. looks like the upgrade missed some packages and/or settings?

• ← Server dying at inconvenient times ..
• DBMail swap from LDAP to SQL auth →