iptables script in only one file
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
OpenBSD based firewall distribution
An iptables IPv4 firewall and traffic shaping program
ipset set listing wrapper script
shell program to automatically configure freebsd as a firewall
Programmable completion code (bash) for ip[6]tables (netfilter.org)
bash programmable completion for conntrack-tools (netfilter.org)
Programmable completion code (bash) for ipset (netfilter.org)
Firewall Management Script
High interaction honeypot solution for Linux based systems
flex-fw is a small and fast console frontend to iptables
Block incoming traffic from Tor network with IPTABLES
Easy to use firewall for linux beginners.
Easy Firewall Script