Simulating an IP packet traversing the Linux kernel.
Network Firewall Linux Kernel Module with Conflict Resolution Engine
A client for the MikroTik RouterOS API protocol, written in PHP.
track log files, block intrusions, and much more
Block or allow connections by country address blocks
Open source voucher management / hotspot system
Extract and Convert Juniper Firewall Policies to CSV
download and convert ip block list
Linux firewall distribution geared towards home and SOHO users.
bash programmable completion for conntrack-tools (netfilter.org)
Programmable completion code (bash) for ipset (netfilter.org)
High interaction honeypot solution for Linux based systems
Firewall Management Script
pfck - pf check - organizes flow information by host
Ferramenta Web para Administração de Firewall
Jateway is a general purpose TCP/IP connection proxy
network control and reporting
IOSec Addons are enhancements for web security and crawler detection