OpenSnitch is a GNU/Linux port of the Little Snitch firewall
Anti Spam SMTP Gateway
Next Generation Open Source Firewall
Generació regles IPTables per Continents o Països
Tool to ping hosts through firewalls blocking ICMP
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
track log files, block intrusions, and much more
Open source voucher management / hotspot system
Linux firewall distribution geared towards home and SOHO users.
Programmable completion code (bash) for ipset (netfilter.org)
High interaction honeypot solution for Linux based systems
Jateway is a general purpose TCP/IP connection proxy
network control and reporting
Disconnect your children from the Internet after bedtime.
Easy to use firewall for linux beginners.
iptables web interface