Domino Server: disable TLS 1.0 and customize Cipher Suites  

By Manfred Dillmann | 1/1/20 3:58 PM | Infrastructure - Notes / Domino | Added by Oliver Busse

In the middle of December I renewed the SSL certificate of one of my Domino servers (mobil.madicon.de) and subsequently started the obligatory SSL server test of Qualys SSL Labs. The rating of "A+" was OK, but the reference (marked with the red arrow in the screenshot) to the downgrade to "Grade B" from January 2020 was reported. Cause: my Domino server still supported TLS 1.0!