OpenSnitch is a GNU/Linux port of the Little Snitch firewall
A high-performance MySQL proxy
Next Generation Open Source Firewall
Firewall log analyzer
Add rule to windows firewall to block inbound and outbound traffic
Anti Spam SMTP Gateway
Generació regles IPTables per Continents o Països
Tool to ping hosts through firewalls blocking ICMP
Program to block League of Legends contacts.
Powerfull Web Application Firewall for PHP
track log files, block intrusions, and much more
Open source voucher management / hotspot system
High interaction honeypot solution for Linux based systems
Jateway is a general purpose TCP/IP connection proxy
A MAC address based user authentication system for campus-wide network
a secure, open source OS for use inside USEagency facilities
Firewall/Proxy FreeBSD
Easy to use firewall for linux beginners.
Managing OpenBSD's Packet Filter with Python