OPNsense

OPNsense is an open source firewall and routing platform based on FreeBSD. It makes up the base of the Byzantium system in the Kali Purple Reference Architecture.

OPNsense is included in (and an essential part of) Byzantium by default.

Available Tools

• Suricata - Intrusion Detection/Prevention System
• Unbound - DNS
• Squid - Proxy
• NGINX - Reverse Proxy
• NAXSI - Web Application Firewall