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

Hosting git repositories -- Gitolite allows you to setup git hosting on a central server, with very fine-grained access control and many (many!) more powerful features.

Nikto web server scanner

A fast PostgreSQL Log Analyzer

rc file (dotfile) management

An open-source digital image forensic toolset

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

Main repository for munin master / node / plugins

An engine to make Tor network your default gateway

DuckDuckGo Instant Answer Infrastructure

ModSecurity v3 Nginx Connector

Single Packet Authorization > Port Knocking

Contributed stuff for munin (plugins, tools, etc...)

NTP Pool Project

Symfony2 Debian Packaging

/sBin/nuCache: Varnish-Cache Modular Configuration with Pre-Defined Production Ready Modules

Plugins for Nagios, Munin etc.