Wirehog

[citation needed] Wirehog was created by Andrew McCollum, Mark Zuckerberg, Adam D'Angelo, and Sean Parker during their development of the Facebook social networking website in Palo Alto in the summer and fall of 2004.

"[2] The software was described by its creators as "an HTTP file transfer system using dynamic DNS and NAT traversal to make your personal computer addressable, routable and easily accessible".

In ways, Wirehog was a project comparable to Alex Pankratov's Hamachi VPN, the open-source OneSwarm private network, or the darknet RetroShare software.

Until at least July 2005, Facebook officially endorsed the p2p client, saying on their website: "Wirehog is a social application that lets friends exchange files of any type with each other over the web.

The service ran a custom-written HTTP server, and file downloading and photo viewing was through the web browser, with requested authentication by Wirehog's central servers to allow users to set up custom privacy settings.