OWASP Coraza WAF is a golang modsecurity compatible firewall library
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Manage port forwardings via UPnP
IPFIRE Firewall for ARM architecture (OrangePi)
A java PCAP and DPI library
An iptables IPv4 firewall and traffic shaping program
PeerGuardian - a privacy oriented firewall application
A client for the MikroTik RouterOS API protocol, written in PHP.
ngx_lua_waf
Jateway is a general purpose TCP/IP connection proxy
IOSec Addons are enhancements for web security and crawler detection
Sonicwall Configuration File Reader
Personal firewall for linux desktop and android phone
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks