The original post: /r/debian by /u/wizard10000 on 2024-04-18 11:43:12.

Been fighting with this for a few days, all four Sid machines here broke at the same time.

With a little help from the debian-user mailing list we identified the issue and I was able to get it going by editing /etc/ssh/sshd_config and changing #AddressFamily any to AddressFamily inet and restarting sshd.

Bug report filed - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1069236