Enable UFW Firewall

Ubuntu: Enable UFW Firewall

UFW (Uncomplicated Firewall) is a simple tool to manage iptables firewall rules. This guide explains how to enable and configure UFW on Ubuntu.

Step 1: Install UFW

sudo apt update

sudo apt install ufw -y

Step 2: Allow SSH Access

sudo ufw allow ssh

Step 3: Allow Web Traffic

sudo ufw allow 80/tcp

sudo ufw allow 443/tcp

Step 4: Enable Firewall

sudo ufw enable

Step 5: Check Status

sudo ufw status verbose

Best Practices

• Always allow SSH before enabling firewall
• Restrict unused ports
• Use ufw deny to block specific traffic