Setting Up UFW Firewall

Learn how to set up and manage UFW (Uncomplicated Firewall) on Ubuntu with advanced configurations.

1. Install UFW:

sudo apt install ufw

2. Set default policies:

sudo ufw default deny incoming
sudo ufw default allow outgoing

3. Enable UFW:

sudo ufw enable

4. Allow specific services:

sudo ufw allow ssh
sudo ufw allow http
sudo ufw allow https

5. Advanced configurations:

# Allow specific IP range
sudo ufw allow from 192.168.1.0/24

# Rate limiting
sudo ufw limit ssh

# Delete rule
sudo ufw delete allow http

Monitoring and logging:

• Check status: sudo ufw status verbose
• View logs: sudo less /var/log/ufw.log
• Monitor real-time: sudo ufw logging on

Read more: UFW Documentation