I want to configure ejabberd server to support tls 1.2 only, and remove 1.0 and 1.1 Is it possibe? In (documentation) I did not found fow to do this
Should I define some specific chiphers for 1.2?
Any help can be useful
You should read the "ultimate" guide to ejabberd and TLS encryption: https://blog.process-one.net/securing-ejabberd-with-tls-encryption/
The guide explains how to configure ejabberd by selecting the TLS / SSL protocol version you want.