OpenSnitch is a GNU/Linux port of the Little Snitch firewall
OWASP Coraza WAF is a golang modsecurity compatible firewall library
A high-performance MySQL proxy
An engine to make Tor network your default gateway
Firewall log analyzer
fancyss is a project for bypassing the Great Firewall (GFW)
An iptables IPv4 firewall and traffic shaping program
OWASP ModSecurity Core Rule Set (CRS) Project
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
High-performance WAF built on the OpenResty stack
ngx_lua_waf
SSH Java client GUI for Unix, Linux administration and monitoring
Analyze the network carateristics like Delay, Jitter, Packet loss etc.