OWASP Coraza WAF is a golang modsecurity compatible firewall library
Manage port forwardings via UPnP
HTTP proxy to block ads and customize webpages
Intelligently block brute-force attacks by aggregating system logs
Firewall log analyzer
Robust and flexible VPN network tunnelling
OpenBSD based firewall distribution
A java PCAP and DPI library
A simple, portable port scanner
OWASP ModSecurity Core Rule Set (CRS) Project
blocklists for openbsd,freebsd,linux,iptables,bsd pf,pf,ipfilter
Provisions Simple Secure Network Firewall/Router
Prevent and Protect Your HTML5 Video, Music , Audio From Download Free
shell program to automatically configure freebsd as a firewall
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
A client for the MikroTik RouterOS API protocol, written in PHP.
track log files, block intrusions, and much more
Open source voucher management / hotspot system