Explore the latest product updates and best practices at our hybrid Checkmk Conference #12 from June 16-18, 2026 – Register here

Werk #16815: Missing piggybacked hosts

Component Checks & agents
Title Missing piggybacked hosts
Date May 10, 2024
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.4.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.3.0p2 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

This fixes a regression in Checkmk 2.3.0 and 2.3.0p1. Piggybacked hosts containing invalid characters where dropped silently. This restores the original behavior: Invalid characters in host names are replaced by "_".

To the list of all Werks