UFW setup
UncomplicatedFirewall is an interface to iptables to simplify the process of configuring a firewall on Linux systems.
Quick start
- Check firewall status:
sudo ufw status verbose
- Disable incoming traffic and enable outgoing
sudo ufw default deny incoming sudo ufw default allow outgoing
- Allow usual connections
sudo ufw allow ssh sudo ufw allow http sudo ufw allow https
- Enable firewall
sudo ufw enable
Extra customizations
To allow specific port ranges:
sudo ufw allow 6000:6007/tcp
sudo ufw allow 6000:6007/udp
To allow specific IP Addresses:
sudo ufw allow from 15.15.15.51
sudo ufw allow from 15.15.15.51 to any port 22