This article will show you how to use torproxy to tunnel to a Tor exit node, bypassing the rest of the s-l-o-w Tor network, and then use proxychains so that your applications can use this tunnel, and your public IP will appear to be that of the Tor exit node.
First we need to get the required applications installed.
Install
I will be using Ubuntu 11.04. You will also need to install:
proxychains
privoxy
tortunnel (contains torproxy, requires boost libraries)
Boost C++ Libraries
From terminal:
sudo apt-get install proxychains privoxy libboost-all-dev
See notes below if you cant get Boost libraries installed.
Next, download and save tortunnel:
http://www.thoughtcrime.org/software/tortunnel/
Back to terminal, then extract and install...
tar -xf tortunnel-0.2.tar.gz
cd tortunnel-0.2
./configure; make;
Watch the install screen and make sure it all goes well. To confirm torproxy is working type:
./torproxy
You should get a response:
Usage: ./torproxy <ExitNodeIP>
Configure
Now that everything is installed, we need to configure privoxy and proxychains so that they work with torproxy.
Configure proxychains.
sudo gedit /etc/proxychains.conf
Comment out the last line with a # and add the line below:
# defaults set to "tor"
#socks4 127.0.0.1 9050
socks5 127.0.0.1 5060
Configure privoxy
sudo gedit /etc/privoxy/config
Find the line that says "forward-socks5" and change it to look like this (including the period):
# To chain Privoxy and Tor, both running on the same system,
# you would use something like:
#
forward-socks5 / 127.0.0.1:5060 .
#
Configure torproxy
To connect to an exit node we first need to find exit node IP.
From the tortunnel website they provide a directory of Tor routers. Look in the directory for a router that has the properties: "Fast" "Exit" and "Valid"
A directory of Tor routers is located here:
http://128.31.0.34:9031/tor/status/all
Once you find an exit node IP, run torproxy using that IP, and put an & at the end of the command to start it as a backround job.
./torproxy <ExitNodeIP> &
You should see a result like this:
./torproxy 173.254.192.37
torproxy 0.2 by Moxie Marlinspike.
Retrieving directory listing...
Connecting to exit node: 173.254.192.37:443
SSL Connection to node complete. Setting up circuit.
Connected to Exit Node. SOCKS proxy ready on 5060.
Use tunnel
Once you see the line "Connected to Exit Node. SOCKS proxy ready on 5060" we can start pushing traffic through that socket.
We configured proxychains to forward traffic to port 5060. To use command line tools use the following syntax:
proxychains telnet google.com 80
proxychains ssh user@example.com
proxychains nmap 100.200.100.10
Or you can configure Firefox to run through the Tor exit proxy. Click
Edit > Preferences > Network > Settings
Set proxy to "Manual proxy configuration" and specify 127.0.0.1 5060 as Firefox's SOCKS proxy - this will push all firefox traffic trough the Tor exit node. Confirm this by checking whatismyip.com - it should be the same IP as the exit node you chose.
Notes
You may need to download the Boost C++ libraries directly from their website or SourceForge and install it manually. The release package will have detailed install instructions.
Computer Biology
