Werk #18189: Host name validation on "Add host" page

Component

Setup

Title

Host name validation on "Add host" page

Date

Jun 10, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p5	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p35 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

With Werk 17719 the host name validation was fixed, but this change introduced the option to create hosts with an empty host name.

Now this is, again, no longer possible. With this werk potential hosts being created without a host name will be deleted automatically again.