Domino 12 introduces a new architecture for certificate management that provides improved flexibility, functionality, and security. Due to those enhancements and details in the SNI handling, the older kyr cache can't handle lookups for DNS names. The improved mapping can only work with the new TLS Cache which has been introduced in Domino V12 with many improvements -- the main features are listed below.

Last week I looked into different type of Kuberntes (K8s) environments. And finally found out that the one I have been using is the best for my use-cases already! And finally went back to my favorite K3s implementation (https://k3s.io/ ) where everything worked out of the box.