Ufw Cheat Sheet Ufw Basic commands sudo ufw status Check status (usually "inactive" by default). sudo ufw status numbered List rules with ID numbers (great for deleting). sudo ufw enable Turn the firewall ON sudo ufw disable Turn the firewall OFF sudo ufw reload ✔Apply changes after editing rules. Defaults sudo ufw default deny incoming sudo uwf default allow outgoing Allow HTTP (80) sudo ufw allow http or sudo ufw allow 80 Allow HTTPS (443) sudo ufw allow https or sudo ufw allow 443 Allow a Port Range sudo ufw allow 8000:8100/tcp Allow entire subnet to all ports sudo ufw allow from 192.168.1.0/24 Allow a specific IP sudo ufw allow from 192.168.1.50 Allow IP to a specific port sudo ufw allow from 192.168.1.50 to any port 22 Allow subnet to specific port with specific protocol with comment sudo ufw allow from 192.168.10.0/24 to any port 5900 proto tcp comment \ "Allow VNC from .10.0/24 subnet"