Ubuntu: Setup SSH Server

Here are steps to setup the SSH server on an Ubuntu host.

Here's a good reference article for how to do what we're doing here: How to Enable SSH on Ubuntu 20.04

Here are the commands to execute:

sudo apt update

Install the SSH server with this:

sudo apt install openssh-server

Start the SSH server:

sudo systemctl enable --now ssh

Verify it is running:

sudo systemctl status ssh

Add a firewall rule for the SSH server:

sudo ufw allow ssh