iambryancs/update-ssh-port-ubuntu-22_10-and-later.md

Created July 18, 2025 02:27

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Update SSH Port on Ubuntu 22.10 and later

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update-ssh-port-ubuntu-22_10-and-later.md

Intro

SSHd now uses socket-based activation Ubuntu 22.10 or later. Below are 2 options to change the default SSH port.

A. Revert to service-based

Disable socket-based and enable service-based SSH

systemctl disable --now ssh.socket
systemctl enable --now ssh.service

Update the Port in /etc/ssh/sshd_config
Restart the SSH service
```
sudo systemctl restart ssh.service
```

B. Socket-based

Create ssh socket dir

mkdir -p /etc/systemd/system/ssh.socket.d

Create config

cat >/etc/systemd/system/ssh.socket.d/listen.conf <<EOF
[Socket]
ListenStream=2022
EOF

This will make SSH listen on ports 2022 and 22. If you want SSH to only listen on port 2022, use the config below.

cat >/etc/systemd/system/ssh.socket.d/listen.conf <<EOF
[Socket]
ListenStream=
ListenStream=2022
EOF

sudo systemctl daemon-reload
sudo systemctl restart ssh.socket

Refs:

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