A firewall for humans.
iptables script in only one file
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Share a VPN connection with VMs or containers
Anti Spam SMTP Gateway
OpenBSD based firewall distribution
An iptables IPv4 firewall and traffic shaping program
Bash script to enable the firewall on startup of your Ubuntu server.
blocklists for openbsd,freebsd,linux,iptables,bsd pf,pf,ipfilter
ipset set listing wrapper script
A powerful network security tool, easy, safe and totally free.
Provisions Simple Secure Network Firewall/Router
shell program to automatically configure freebsd as a firewall
Programmable completion code (bash) for ip[6]tables (netfilter.org)
A client for the MikroTik RouterOS API protocol, written in PHP.
Block or allow connections by country address blocks
Open source voucher management / hotspot system
Linux firewall distribution geared towards home and SOHO users.