Whonix
Whonix is an Anonymous Operating System.
THIS IS NOT WHONIX'S HOMEPAGE. Please go to:
https://www.whonix.org/
(This is only Whonix's sourceforge must-have project page.)
Whonix is an operating system focused on anonymity, privacy and security. It's based on the Tor anonymity network, Debian GNU/Linux and security by isolation. DNS leaks are impossible, and not even malware with root privileges can find out the user's real IP.
Whonix consists of two parts: One solely runs Tor and acts as a gateway, which we call Whonix-Gateway. The other, which we call Whonix-Workstation, is on a completely isolated network. Only connections through Tor are possible.
Whonix is produced independently of, and carries no guarantee from, The Tor Project.
For download:
https://www.whonix.org/wiki/Download