OWASP Coraza WAF is a golang modsecurity compatible firewall library
LuLu is the free open-source macOS firewall
An engine to make Tor network your default gateway
Firewall log analyzer
fancyss is a project for bypassing the Great Firewall (GFW)
OWASP ModSecurity Core Rule Set (CRS) Project
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Analyze the network carateristics like Delay, Jitter, Packet loss etc.