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