Grsecurity: is an extensive security enhancement to the Linux kernel that defends against a wide range of security threats through intelligent access control, memory corruption-based exploit prevention.
OpenSSH: is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking, and other attacks.
OpenSSL: is an open source project that provides a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols.
OpenVPN: Technologies has designed and deployed a virtual network software that provides secure, reliable, and scalable communication services.
Stunnel: is a proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the programs' code. Its architecture is optimized for security, portability, and scalability (including load-balancing).
I2P Network: is an anonymous overlay network - a network within a network. It is intended to protect communication from dragnet surveillance and monitoring by third parties such as ISPs.
Privoxy: is a non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk.
Tor Browser & Chat: is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy.
Gnunet: is a mesh routing layer for end-to-end encrypted networking and a framework for distributed applications designed to replace the old insecure Internet protocol stack.
Bumblebee: The Bumblebee Project proudly presents version 3.2.1 of Bumblebee, a project aiming to support NVIDIA Optimus technology under Linux.
Pipelight: is a wrapper for using Windows plugins in Linux browsers and therefore giving you the possibility to access services which are otherwise not available for Linux users.
e4rat: is a toolset to accelerate the boot process as well as application startups. Through physical file reallocation e4rat eliminates both seek times and rotational delays. This leads to a high disk transfer rate.
Openbox: is a highly configurable, next generation window manager with extensive standards support.
ClamAV: is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats.
KeePassX: is an application for people with extremely high demands on secure personal data management. It has a light interface.
Telepathy Messenger: KDE Telepathy provides a suite of applications for a full instant messaging experience.
Wine: is a compatibility layer capable of running Windows applications on several POSIX-compliant operating systems.
HPLIP: HP's Linux Imaging and Printing software (HPLIP), Print, Scan and Fax Drivers for Linux.
OpenStack: is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter, all managed through a dashboard that gives administrators control while empowering their users to provision resources through a web interface.
qtCurve: is a desktop theme for the GTK and Qt widget toolkits. It is implemented for Qt versions 3 and 4, allowing users to achieve a uniform look between three widget toolkits.