A high-performance MySQL proxy
OWASP Coraza WAF is a golang modsecurity compatible firewall library
Next Generation Open Source Firewall
Web application firewall in C language uses libevent
One of the most advanced DNS Proxy and DNS Firewall in one product.
Prevent and Protect Your HTML5 Video, Music , Audio From Download Free
High-performance WAF built on the OpenResty stack
ngx_lua_waf
Nginx and Lua Based Easy to setup Web Application Firewall
A simple captive portal