pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
OPNsense - OPNsense® you next open source firewall. Free Download. High-end Security Made Easy™. Offers Intrusion Prevention, Captive Portal, Traffic Shaping and more.
IPFire - IPFire is a server distribution with intended to use as a firewall.
Emsisoft Online Armor Firewall - Emsisoft Online Armor Firewall is a freemium online firewall protection system by the Emsisoft that is based on the own independent protection technology of the Emsisoft.
VyOS - VyOS in an open source Linux-based operating system sold and distributed by Sentrium corporations. It is geared toward IT specialists and network administrators for the purpose of securing network and company data... read more.
Endian Firewall Community - Endian Firewall Community (EFW) is a "turn-key" linux security distribution that turns...