Add or Change SSL/TLS certificate in Lotus Domino Add or Change SSL/TLS certificate in Lotus Domino SSL/TLS certificates don’t last forever, most of them need to be renewed on a yearly cycle and occasionally you will want to change the type of the SSL certificate mid-cycle. Lotus Notes SSL/TLS For work with ssl/tls certificates in the lotus notes are used with the kyrtool program. You can download kyrtool from this IBM website . Or direct from our web site . Security Linux