How to Enable UFW Firewall

Prerequisites

Before enabling UFW, make sure you have:

• SSH access to your VPS
• Root or sudo privileges

Step 1: Check Current Status

Connect to your VPS:

ssh hxroot@YOUR_SERVER_IP -p 22

sudo ufw status

Step 2: Allow SSH (VERY IMPORTANT)

sudo ufw allow 22/tcp

Step 3: Allow Other Ports (Optional)

sudo ufw allow 80/tcp   # HTTP
sudo ufw allow 443/tcp  # HTTPS

Step 4: Enable UFW

sudo ufw enable

Step 5: Verify

sudo ufw status verbose

Default Policies

sudo ufw default deny incoming
sudo ufw default allow outgoing