cloc counts blank lines, comment lines, and physical lines of source code in many programming languages.

Stack trace visualizer

MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.

Simple script to analyse your PostgreSQL database configuration, and give tuning advice

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