NAT diagnostics for uProxy (server-side portions only).
Needs to run on a machine with two public IPs.
For uProxy, this is currently deployed on an Amazon EC2 instance.
Python client for server.py. A TypeScript implementation, as used by uProxy,
is in uproxy-lib.
For the NAT detection to work, a udp server is needed to aid the detection
process. server.py is the server code that should be run on a server with
2 public IPs. EC2 is a one enviroment to set up such a server.
In Amazon EC2 console, create a instance from a linux image. I chose to use
amzn-ami-hvm-2014.03.2.x86_64-ebs. The mancine need to have 2 private ips,
each of them will be mapped to a public elastic ip. `server.cfg' needs
to be updated with the 2 private ips and 2 mapped elastic ip. A new security
group needs to be established with port 6666 and 7666 open for incoming udp.
I also openned 80 and 22 for TCP. The latter is for ssh access.
After that, run server.py inside screen, and test it with client.py from your own machine.