Firewall Rule Builder

Generate firewall rules for iptables, nftables, UFW, Windows Firewall, Cisco ACL and pfSense. 100% client-side.

Platform

Linux netfilter — the standard for Linux firewalls. Rules are stateless unless used with conntrack.

Quick Presets

Rule Configuration

Action

Direction

Protocol

Source IP / CIDR (leave empty for any)

Destination IP / CIDR (leave empty for any)

Source Port (leave empty for any)

Destination Port (leave empty for any)

Interface (optional)

Comment / Description (optional)

Generated Rule iptables

# Configure a rule above to generate the command

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