Moshe Kaplan's Blog

Jul 28, 2014 - 2 minute read

Web Filter Bypass Via Teamviewer VPN and SSH Tunneling

 I have a cousin that lives in a community where Internet access is extremely controlled and having unrestricted Internet access is taboo. She has a special dispensation so she can work remotely, but her access is heavily restricted. She recently asked if I could find a way to repair her iPod, as it didn’t boot and needed a firmware update, but she couldn’t update the firmware through iTunes, because of the Internet filter.

So to take a quick inventory:

  1. Only whitelisted websites are accessible
  2. Non-HTTP ports are blocked
  3. TeamViewer is accessible

So my strategy was to:

  1. Create a VPN through TeamViewer ( here’s a guide)
  2. Set up an SSH server on an Ubuntu VM
  3. Use Putty to connect to the SSH server through the VPN and use it as a SOCKS proxy

None of these steps are particularly difficult. Setting up Putty’s  plink for the SOCKS proxy was the most difficult step.

Here is the command to run with plink:

:: Connects to on port 5900. Sets up a SOCKS proxy that listens on port 9876 and forwards all connections through the connection to
:: You then need to configure your system to use as a SOCKS proxy.

PLINK.EXE -P 5900 -D -N

The only other gotcha is that in Windows, you need to specifically enable the SOCKS proxy, and disable all other proxies.