OpenSnitch is a GNU/Linux port of the Little Snitch firewall
Firewall able to analyze visitor behavior & provide adapted response
A high-performance MySQL proxy
A firewall for humans.
OWASP Coraza WAF is a golang modsecurity compatible firewall library
Next Generation Open Source Firewall
Robust and flexible VPN network tunnelling
ipset set listing wrapper script
Powerfull Web Application Firewall for PHP
A client for the MikroTik RouterOS API protocol, written in PHP.
Open source voucher management / hotspot system
High interaction honeypot solution for Linux based systems
network control and reporting
Personal firewall for linux desktop and android phone
Easy to use firewall for linux beginners.