[Check_mk (english)] Adding nagios check to OMD installation of Check_MK

[Ronald Prague]

Hi all;

I'm using the OMD installation of check_mk and so far its working
fantastic, but I'm a little lost as to how to add machine specific checks
for my extreme switches (https://github.com/barryo/nagios-plugins for
example) which were written for nagios.

I'd assume the plugins would be installed in
/opt/omd/sites/<sitename>/lib/nagios/plugins Is this correct?

If so, once they're installed how would I add those specific service checks
to check_mk?

I found documentation here (
https://mathias-kettner.de/checkmk_legacy_checks.html ) about adding legacy
checks, I'm assuming this would be done in
/opt/omd/sites/<sitename>/etc/check_mk/main.mk?

[Tusz, Jakub]

I'd assume the plugins would be installed in /opt/omd/sites/<sitename>/lib/nagios/plugins Is this correct?

Yes, but why do you not use the buildin scripts in Check_MK? They can solve the most of your problems. But if there is no buildin solution:

1. „Host & Service Parameters“

2. „Active Checks“

3. „Classical active and passive Monitoring checks“

4. Create a new rule -> name in „Service description“ and check command in „Command Line“ (+ the normal config for host/service matching)

Then it should work.
But try the Inventory on your switches (set the host properties to „Network Device“ and make a full scan on it)

Mit freundlichen GrÌßen

i.A. Jakub Tusz
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Jakub Tusz
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Von: checkmk-en-***@lists.mathias-kettner.de [mailto:checkmk-en-***@lists.mathias-kettner.de] Im Auftrag von Ronald Prague
Gesendet: Donnerstag, 30. April 2015 10:48
An: checkmk-***@lists.mathias-kettner.de
Betreff: [Check_mk (english)] Adding nagios check to OMD installation of Check_MK

Hi all;

I'm using the OMD installation of check_mk and so far its working fantastic, but I'm a little lost as to how to add machine specific checks for my extreme switches (https://github.com/barryo/nagios-plugins for example) which were written for nagios.

I'd assume the plugins would be installed in /opt/omd/sites/<sitename>/lib/nagios/plugins Is this correct?

If so, once they're installed how would I add those specific service checks to check_mk?

I found documentation here ( https://mathias-kettner.de/checkmk_legacy_checks.html ) about adding legacy checks, I'm assuming this would be done in /opt/omd/sites/<sitename>/etc/check_mk/main.mk<http://main.mk>?

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[Eismann Dominik]

Hi Ronald,

you should place the Nagios plugins in the ~/local directory structure under /opt/omd/sites/<sitename>/local/lib/nagios/plugins. That way they won't be lost when updating the underlying OMD version. The ~/local directory is the general place to put local changes to the system, like your own notification scripts, self-written check_mk checks etc. The directory /opt/omd/sites/<sitename>/lib/nagios/plugins holds the built-in Nagios plugins that come with OMD.

You can use those plungins like Jakub wrote in a "Classical active and passive Nagios checks" rule. There you have two variables for the plugin paths which you can use in the "Command line" field:
$USER1$ = /opt/omd/sites/<sitename>/lib/nagios/plugins
$USER2$ = /opt/omd/sites/<sitename>/local/lib/nagios/plugins

So, for example, my NTP check looks like this (without the quotes):
Service description: "NTP connect"
Command line: "$USER1$/check_ntp -H $HOSTADDRESS$"
Internal command name: "check_ntp_time"


Have fun!


Kind Regards,
Dominik Eismann


Wieland Electric GmbH
Brennerstraße 10-14
96052 Bamberg

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Von: checkmk-en-***@lists.mathias-kettner.de [mailto:checkmk-en-***@lists.mathias-kettner.de] Im Auftrag von Ronald Prague
Gesendet: Donnerstag, 30. April 2015 10:48
An: checkmk-***@lists.mathias-kettner.de
Betreff: [Check_mk (english)] Adding nagios check to OMD installation of Check_MK

Hi all;

I'm using the OMD installation of check_mk and so far its working fantastic, but I'm a little lost as to how to add machine specific checks for my extreme switches (https://github.com/barryo/nagios-plugins for example) which were written for nagios.

I'd assume the plugins would be installed in /opt/omd/sites/<sitename>/lib/nagios/plugins Is this correct?

If so, once they're installed how would I add those specific service checks to check_mk?

I found documentation here ( https://mathias-kettner.de/checkmk_legacy_checks.html ) about adding legacy checks, I'm assuming this would be done in /opt/omd/sites/<sitename>/etc/check_mk/main.mk?

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