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Category: Unkategorisiert

Checkmk cmk2 Unkategorisiert

Checkmk: Build Notification plugins which hijack the build in Mails Plugin in 2.4

Warning: This is risky and can break with updates. Situation: You have the need to send mails from Checkmk, but…
7. November 2025 Bastian Kuhn
Unkategorisiert

Does a Host in Checkmk need to exists before you register?

Say you want to do an Agent Registration for TLS, or register the Bakery automatically. The question is, needs the…
2. November 20251. December 2025 Bastian Kuhn
Unkategorisiert

Checkmk core killed by SIGKILL

If you experience the Problem that your Checkmk core (cmc) is killed by a SIGKILL from the Kernel, It is…
2. November 20252. November 2025 Bastian Kuhn
Check Dokumentation Unkategorisiert

Install Checkmk Agent in a Home folder

This can be used to install the Checkmk agent without to install anything. Useful for Appliances. Content Checkmk Agent Installation…
2. November 20255. November 2025 Bastian Kuhn
Unkategorisiert

Enable Rabbit MQ Interface on Checkmk Systems

How to access the Rabbit MQ Web Interface in Checkmk Checkmk introduced with 2.4 a new function Piggyback Hub which…
30. October 202530. October 2025 Bastian Kuhn
Unkategorisiert

Probleme mit Smart Ping

knowledgebase #checkmk setcap cap_net_raw+ep auf icmpsender und receiver machen /opt/omd/sites/SITE/lib/cmc ~/var/log/cmc.log Fehler: "Error at pcap_open(): (null): You don't have permission…
29. October 2025 Bastian Kuhn
Unkategorisiert

Eventconsole Cleanup the History

checkmk #knowledgebase Problems with sqlite and the mk event History Since Checkmk 2.4 the History of Checkmk Eventconsole is written…
29. October 2025 Bastian Kuhn
Checkmk cmk2 Unkategorisiert

Checkmk: Find all Context Variables for Notification Plugins

The Problem is, that the Gui is not showing all of them. So you can’t see which variables you can…
21. September 2023 Bastian Kuhn
Checkmk cmk2 Unkategorisiert

Checkmk: Find all Context Variables for Notification Plugins

The Problem is, that the Gui is not showing all of them. So you can’t see which variables you can…
21. September 202321. September 2023 Bastian Kuhn
Checkmk cmk2 Unkategorisiert

Eventconsole: Enable Syslog and Trap Receiver

The Syslog and Trap Receiver in Checkmk, can be enabled using the Global settings Global Settings: Go to Site management,…
21. September 202321. September 2023 Bastian Kuhn

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