IPFire is a hardened Linux-based firewall distribution designed for security, speed, and ease of use. Developed by the IPFire community since 2004, it provides a complete firewall and router solution suitable for both home users and small-to-medium businesses, with a focus on modularity and a strong security posture.

IPFire uses a stateful packet inspection firewall engine, advanced intrusion detection, and a built-in VPN system. It features a unique add-on system called Pakfire that extends functionality without compromising security or performance. The web-based interface makes configuration accessible to non-expert users while still exposing the full power of the underlying Linux networking stack. IPFire is free and open-source under the GNU GPLv3 licence.

Key Features

• Stateful packet inspection firewall — Netfilter-based firewall with deep packet inspection, port forwarding, and DMZ support
• Intrusion Detection System (IDS) — Snort integration for real-time network traffic analysis and attack detection
• Virtual Private Network (VPN) — OpenVPN server and client with TLS-based certificate management and road warrior support
• Quality of Service (QoS) — Traffic prioritisation and bandwidth management with flexible classification rules
• Web proxy and content filtering — Squid proxy server with URL filtering, virus scanning (ClamAV), and content category blocking
• Dynamic DNS — Built-in client supporting major DDNS providers
• DHCP server — Multi-subnet DHCP with static lease assignment
• DNS server — Local caching DNS resolver with forwarding options
• Pakfire add-on system — Modular package management to extend functionality without destabilising the core
• IPFire Location — Geolocation-based firewall rules using the IPFire Location database for country-specific access control
• IPFire DBL — DNS-based domain blacklisting for blocking malware, phishing, and unwanted content at the DNS level
• Multi-zone networking — Truly separated Red-Green-Blue-Orange network zones for IoT, guests, and trusted LAN

Why Use It

IPFire is an excellent choice when you want a dedicated firewall appliance that just works. Unlike general-purpose distributions repurposed as firewalls, IPFire’s single-purpose design means lower attack surface, smaller resource footprint, and simpler ongoing maintenance. The multi-zone network architecture (Red-Green-Blue-Orange) gives you proper network segmentation out of the box without complex VLAN configuration. The monthly Core Update cycle delivers security patches reliably while preserving configuration across upgrades.

Use Cases

• Home network security — Dedicated firewall appliance protecting home devices and smart home IoT
• Small business gateway — All-in-one firewall with content filtering and VPN for small offices
• Guest network isolation — Blue zone for untrusted guest devices with no access to internal LAN
• VPN road warrior — OpenVPN server for secure remote access from mobile devices and laptops
• IoT device segmentation — Isolate smart home devices behind a separate firewall zone with limited internet access
• Content filtering for education — Squid proxy with URL blacklisting for schools and libraries

Platform

x86_64 (Intel 64 / AMD64) · ARM (Raspberry Pi, AArch64) · Linux-based (hardened) · ISO, USB, and ARM image installation

Licence

GNU General Public License v3 (GPLv3) — fully open source

Website

http://www.ipfire.org