A simple way to block access to the internet per app
OWASP Coraza WAF is a golang modsecurity compatible firewall library
Bypass your ISP's firewalls and connect to the internet!
Prevent and Protect Your HTML5 Video, Music , Audio From Download Free
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
KnockIt! is a port Knocking tool for MAC OSX
Nginx and Lua Based Easy to setup Web Application Firewall
Easy to use firewall for linux beginners.
OpenBSD IPsec based VPN