Networking & security

ufw Config Reference

Uncomplicated Firewall front end.All ufw pages

ufw DEFAULT_FORWARD_POLICY: allow routed traffic for VPNs, Docker and routersDEFAULT_FORWARD_POLICY in /etc/default/ufw is DROP, which blocks routed traffic for VPN servers and routers. Use ufw route allow, enable ip_forward, add NAT.