I had this happen to me as well as the original poster. I also disabled socket authentication using the steps from the thread attached by the original poster to get access to the server again via SSH. Here is the unattended-upgrades log:
Log started: 2024-11-09 06:52:08 Preconfiguring packages ... Preconfiguring packages ... (Reading database ... 121348 files and directories currently installed.) Preparing to unpack .../openssh-sftp-server_1%3a9.6p1-3ubuntu13.7_amd64.deb ... Unpacking openssh-sftp-server (1:9.6p1-3ubuntu13.7) over (1:9.6p1-3ubuntu13.5) ... Preparing to unpack .../openssh-server_1%3a9.6p1-3ubuntu13.7_amd64.deb ... Unpacking openssh-server (1:9.6p1-3ubuntu13.7) over (1:9.6p1-3ubuntu13.5) ... Preparing to unpack .../openssh-client_1%3a9.6p1-3ubuntu13.7_amd64.deb ... Unpacking openssh-client (1:9.6p1-3ubuntu13.7) over (1:9.6p1-3ubuntu13.5) ... Setting up openssh-client (1:9.6p1-3ubuntu13.7) ... Setting up openssh-sftp-server (1:9.6p1-3ubuntu13.7) ... Setting up openssh-server (1:9.6p1-3ubuntu13.7) ... Processing triggers for man-db (2.12.0-4build2) ... Processing triggers for ufw (0.36.2-6) ... Restarting services... Service restarts being deferred: /etc/needrestart/restart.d/dbus.service systemctl restart getty@tty1.service systemctl restart serial-getty@ttyS0.service systemctl restart systemd-logind.service systemctl restart unattended-upgrades.service No containers need to be restarted. No user sessions are running outdated binaries. No VM guests are running outdated hypervisor (qemu) binaries on this host. Log ended: 2024-11-09 06:52:14 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2087551 Title: OpenSSH server config broken on unattended update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/2087551/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
