How to Set Up a Firewall with UFW on Ubuntu 26.04

To set up a firewall with UFW on Ubuntu 26.04, allow SSH before enabling it.

Step 1 : Update.

sudo apt update

Step 2 : Install UFW.

sudo apt install ufw

Step 3 : Check status.

sudo ufw status

Step 4 : Allow SSH.

sudo ufw allow ssh

Step 5 : (Optional) Allow HTTP and HTTPS.

sudo ufw allow 80/tcp
sudo ufw allow 443/tcp

Step 6 : Enable.

sudo ufw enable

Step 7 : Status again.

sudo ufw status

You have set up a firewall with UFW on Ubuntu 26.04.