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

     shell   sudo ufw default deny incoming   sudo uwf default allow outgoing  

Allow HTTP (80)

     shell   sudo ufw allow http     or   shell   sudo ufw allow 80  

Allow HTTPS (443)

     shell   sudo ufw allow https     or    shell   sudo ufw allow 443  

Allow a Port Range

     shell   sudo ufw allow 8000:8100/tcp  

Allow entire subnet to all ports

     shell   sudo ufw allow from 192.168.1.0/24  

Allow a specific IP

     shell   sudo ufw allow from 192.168.1.50  

Allow IP to a specific port

     shell   sudo ufw allow from 192.168.1.50 to any port 22  

Allow subnet to specific port with specific protocol with comment

     shell   sudo ufw allow from 192.168.10.0/24 to any port 5900 proto tcp comment \   "Allow VNC from .10.0/24 subnet"