http://dds6qkxpeiqvogt4y2fd7vtsxq6pvokekb2h4la7jd4iwl4ljuawu5qd.onion/wiki/Dev/Technical_Introduction
To visualize this configuration, imagine physically computer A) having no direct internet connection (no Wifi, no modem, no cable, no DSL) and being connected by a LAN cable to a separate physical computer B). In such a setup by default, computer A) has no way to access the internet. Computer B), the proxy, can however opt-in to provide network access to computer A). In this setup, how could computer A) get access to the internet?