Werk #18642: check_cert URL Parameter Renamed

Component

Checks & agents

Title

check_cert URL Parameter Renamed

Date

Sep 18, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Incompatible - Manual interaction might be required

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p14 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p37	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The check_cert active check used --url to represent a DNS resolvable name or an IP address to do a certificate check on.

This parameter has been renamed to --hostname.

In addition, the short form of the parameter is -H.

If you configure certificate checks through the UI then manual intervention is not required.

However, if you use the active check externally or from a script, then manual intervention is needed.