📦 Installation Command
apt install ufw
UFW Firewall Configuration Guide
ufw systemctl: ufwUser-friendly frontend for iptables. Simple command-line interface.
🔌 Default Port
N/A
N/A
Manages ports, doesn't use one
⚙️ Configuration Files
/etc/ufw/ufw.conf/etc/ufw/before.rules/etc/ufw/after.rules/etc/ufw/user.rules/etc/default/ufw
📂 Default Directories
- config:
/etc/ufw - data:
/etc/ufw/user.rules - logs:
/var/log/ufw.log - rules:
/etc/ufw/user.rules
🔐 Default Credentials
Username:N/A
Password:N/A
💡 Requires root/sudo to modify rules
📌 Dependencies
⚠️ Conflicts
✅ Works With
🛡️ Security Notes
Enable before opening ports, default deny incoming, allow SSH first! Use ufw limit for rate limiting
❓ Frequently Asked Questions
How to enable UFW?
Run: sudo ufw enable. Make sure to allow SSH first with 'ufw allow ssh'.
How to allow a port in UFW?
Run: sudo ufw allow <port> or sudo ufw allow <port>/tcp
How to check UFW status?
Run: sudo ufw status verbose