OWASP Coraza WAF is a golang modsecurity compatible firewall library
OpenBSD based firewall distribution
Robust and flexible VPN network tunnelling
Provisions Simple Secure Network Firewall/Router
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
A client for the MikroTik RouterOS API protocol, written in PHP.
Open source voucher management / hotspot system
Manager Update Platform/Packages for pfSense Multisite
A MAC address based user authentication system for campus-wide network
Firewall/Proxy FreeBSD