Nikto web server scanner

SICP PDF with Texinfo and LaTeX source

OWASP ModSecurity Core Rule Set (CRS) Project (Official Repository)

NAT Slipstreaming allows an attacker to remotely access any TCP/UDP services bound to a victim machine, bypassing the victim’s NAT/firewall, just by anyone on the victim's network visiting a website

Single Packet Authorization > Port Knocking

Swaks - Swiss Army Knife for SMTP

Automated script for performing Padding Oracle attacks

Web Backdoor Cookie Script-Kit

Since http://ha.ckers.org/slowloris/ has been taken offline I will upload the original script here.