PTTH Server

The PTTH server is an HTTP server that can serve files from behind a firewall, because it only makes outgoing HTTP connections to a PTTH relay.

``` View from outside the PTTH tunnel:

• HTTP client | | HTTP(S) requests V
• ptth_relay ^ | HTTP(S) requests |
• ptth_server

View from inside the PTTH tunnel:

• HTTP client | | HTTP(S) requests V
• ptth_relay | | HTTP(S) requests V
• ptth_server ```