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README.md

fteproxy

fteproxy provides transport-layer protection to resist keyword filtering, censorship and discriminatory routing policies.

Its job is to relay datastreams, such as web browsing traffic, by encoding streams as messages that match a user-specified regular expression.

fteproxy is fast, free, open source, and cross platform. It works very well with vimagick/openvpn(TCP mode).

In the following example, I will setup a server/client pair to connect www.google.com:80.

Internet Censorship

The problem

The solution

Create a docker-compose.yml

version: "3.8"

services:

  server:
    image: vimagick/fteproxy
    ports:
      - "4911:4911"
    environment:
      - MODE=server
      - SERVER_IP=0.0.0.0
      - SERVER_PORT=4911
      - PROXY_IP=openvpn
      - PROXY_PORT=1194
      - KEY=66754b8113ea7a218b7613f73f7e13b1e91790216f659b5f78b903b34c654741
    extra_hosts:
      - openvpn:1.2.3.4
    restart: unless-stopped

  client:
    image: vimagick/fteproxy
    ports:
      - "1194:1194"
    environment:
      - MODE=client
      - SERVER_IP=openvpn.easypi.pro
      - SERVER_PORT=4911
      - CLIENT_IP=0.0.0.0
      - CLIENT_PORT=1194
      - KEY=66754b8113ea7a218b7613f73f7e13b1e91790216f659b5f78b903b34c654741
    restart: unless-stopped

You need to split the docker-compose.yml into two parts:

server: to mask a tcp service
client: to unmask the service

To generate random key:
xxd -u -p -c32 /dev/urandom | head -n1

Run fteproxy server/client

$ docker-compose up -d
Creating fteproxy_server_1...
Creating fteproxy_client_1...

$ docker-compose ps
Name                     Command               State           Ports
----------------------------------------------------------------------------------
fteproxy_client_1   /bin/sh -c /fteproxy/ftepr ...   Up      0.0.0.0:9009->80/tcp
fteproxy_server_1   /bin/sh -c /fteproxy/ftepr ...   Up      0.0.0.0:32768->80/tcp

Test with curl

$ curl http://localhost:9009/
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>302 Moved</TITLE></HEAD><BODY>
<H1>302 Moved</H1>
The document has moved
<A HREF="http://www.google.com/">here</A>.
</BODY></HTML>