OpenSnitch is a GNU/Linux port of the Little Snitch firewall
Simple tool to configure Windows Filtering Platform (WFP)
OWASP Coraza WAF is a golang modsecurity compatible firewall library
A high-performance MySQL proxy
LuLu is the free open-source macOS firewall
An engine to make Tor network your default gateway
Firewall log analyzer
Add rule to windows firewall to block inbound and outbound traffic
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
Create and delete block rules for the Windows firewall
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.