360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Webinterface to (un)ban IPs in Fail2Ban
Simulating an IP packet traversing the Linux kernel.
Block or allow connections by country address blocks
Firewall Management Script
High interaction honeypot solution for Linux based systems
network control and reporting
Lomalarga is a VPN-like service based on SSH and Linux.