ufw

Identity

• Package: ufw
• Config: /etc/ufw/ (rules in user.rules, user6.rules)
• App profiles: /etc/ufw/applications.d/
• Logs: journalctl -k | grep UFW, /var/log/ufw.log
• Install: apt install ufw (Debian/Ubuntu); not default on RHEL (use firewalld instead)
• Backend: iptables/nftables (abstraction layer)

Key Operations