DNS Tunnel

The communication looks like this: Browser --> Local HTTP Proxy --> DNS Server --> Endpoint

All packets are base32 encoded and chunked. So the data could be encapsulated inside the domain name.

Used for

It can be used to bypass firewalls and other security measures (captitive portals).

Basic Demonstration

How to run

Client side

  git clone https://github.com/lightswisp/http_over_dns.git
  cd http_over_dns
  cd client
  ruby client.rb <DNS Server IP Address> <Local Port for the Proxy server>

Server side (Don't forget to disable the systemd-resolved service)

 git clone https://github.com/lightswisp/http_over_dns.git
 cd http_over_dns
 cd server
 systemctl stop systemd-resolved
 ruby server.rb