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Werk #20222: Agent registration: correct regular expression help

Component Setup
Title Agent registration: correct regular expression help
Date Aug 25, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p13
Not yet released
Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p37
Not yet released
Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The inline help of the Multiple regular expressions option in the Host name computation section of agent registration rules claimed that a pattern is matched from the beginning of the name and that the match is case insensitive. Actually, each expression must match the complete name and the match is case sensitive. The matching behavior itself is unchanged; this werk only corrects the help texts.

This is the same correction as werk #20221, which covers the rules Host name translation for piggybacked hosts and Translation of service names.

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