An iptables IPv4 firewall and traffic shaping program
Bash script to enable the firewall on startup of your Ubuntu server.
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
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks