How to change SSH default port on Ubuntu 22.04 or later?

Your options for changing from default port:

• Turning off this change and reverting to how SSHd worked prior to this update:
  • systemctl disable --now ssh.socket
  • systemctl enable --now ssh.service
  • Then the /etc/ssh/sshd_config works again with Ports and Addresses setting
• OR Listening socket stream update
  1. mkdir -p /etc/systemd/system/ssh.socket.d

  2. cat >/etc/systemd/system/ssh.socket.d/listen.conf <<EOF
     [Socket]
     ListenStream=
     ListenStream=1234
     EOF
     

  3. sudo systemctl daemon-reload
  4. sudo systemctl restart ssh.socket

It should then state it’s started listening on the new port: systemctl status ssh