Werk #17712: check_cert: also consider not_before in validity check

Component	Checks & agents
Title	check_cert: also consider not_before in validity check
Date	Mar 12, 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) 2.4.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.3.0p29 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Before when a certificate validity started in the future check_cert would for example display

Certificate expired (Jan 1 00:00:00 2034 +00:00) CRIT

which is incorrect.

Now the output is being changed to

Certificate not yet valid until Jan 1 00:00:00 2033 +00:00 CRIT

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