SOCKS5 proxy support

[rafagalvez]

Use case

Some systems, like the Tor network, expose their client functionality through a local SOCKS5 proxy.

Motivation

One of the cool functionalities of Tor is that it provides a mechanism to make servers publicly accessible through a random looking address, whose location is hidden. There is no need for a domain, and you can host the website in any machine running the Tor binary.

This servers, called Onion services, have two big advantages over normal web servers:

• The identity of the user and the location of the server are hidden.
• They are cheap to deploy and run, as there is no need to register for a domain.