OpenSnitch is a GNU/Linux port of the Little Snitch firewall
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Anti Spam SMTP Gateway
Generació regles IPTables per Continents o Països
Add rule to windows firewall to block inbound and outbound traffic
Tool to ping hosts through firewalls blocking ICMP
Program to block League of Legends contacts.
Network Firewall Linux Kernel Module with Conflict Resolution Engine
track log files, block intrusions, and much more
ngx_lua_waf
High interaction honeypot solution for Linux based systems
a secure, open source OS for use inside USEagency facilities
Firewall/Proxy FreeBSD
Managing OpenBSD's Packet Filter with Python
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks