1 min read 60 words Updated Sep 24, 2026 Created Sep 24, 2026

#linux#networking#ubuntu

UFW, short for "Uncomplicated firewall" is a firewall tool for Linux, preinstalled on Ubuntu systems.

Basics

# UFW activate 
sudo ufw enable

# Port 11355 
sudo ufw allow 11355/tcp


sudo ufw allow 11355/udp

# Check rules 
sudo ufw status

# Check rules in more detail 
sudo ufw status verbose

Checkout Networking in Linux for more, broader context