Install tcpflow and make sure it is available in your path. Make sure you
have the proper permissions to put you network interface in promiscuous mode.
You can get the latest version here: http://afflib.org/downloads/
Get the source:
git clone git://github.com/hukl/favicon_streamer.git
cd favicon_streamer
Edit apps/fis/src/fis.app.src and adjust the sniffer command, especially
the interface to use.
Then either run the app directly by invoking:
rebar get-deps
rebar compile
erl -pa deps/*/ebin apps/*/ebin
application:start(sasl).
application:start(fis).
Or generate a release which is a little more convenient to use:
cd rel
rebar create-node nodeid=fis
cd ..
rebar compile && rebar generate -f
./rel/fis/bin/fis console
The go to http://localhost:8000 with your browser and start looking at favicons.
Note that favicons are cached seperatly in some browsers so try to visit sites at first which you usually don't browse and see if it works.