Werk #13211: Fix 'only from' monitoring in Check_MK services for systemd hosts

Component Checks & Agents
Title Fix 'only from' monitoring in Check_MK services for systemd hosts
Date Sep 4, 2021
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.1.0i1 2.0.0p10
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The Check_MK service did not report the only-from configuration if the used super server was systemd and the socket unit name did not start with 'check-mk-agent'. This can either be the case if you are using the Checkmk raw edition, or you have changed the agent package name via the WATO.

While the only-from setting was enforced correctly, the agent did not report it back to the monitoring server.

If the agent reports back the effective only-from, the monitoring server will compare it to the configured value, and issues a WARNING if the allowed IP addresses deviate from the expected ones.

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