[2.3.0] Checkmk Werk 15516 created: check_cert: New active check for advanced certificate monitoring

[//]: # (werk v2) # check_cert: New active check for advanced certificate monitoring key | value ---------- | --- date | 2024-04-03T13:42:35+00:00 version | 2.3.0b4 class | feature edition | cre component | checks level | 2 compatible | yes The _check_http_ plug-in was previously the only method to monitor certificates out-of-the-box with Checkmk. With the new plug-in Checkmk provides an extensive functionality to monitor certificates. This includes but is not limited to certificates provided by the HTTP protocol. With the new plug-in you can monitor all certificates provided through a TCP connection to encrypt communication. This includes the monitoring of * validity times (max and remaining) * issuer fields * subject fields * encryption algorithm * alternative names * response times * public key algorithm and size * serial number As with the reworked plugin to monitor web services, you are able to configure multiple services within a single rule.