Audible feedback on just how much your browsing feeds into Google.
By bert@hubertnet.nl / https://berthub.eu/
Demo video in this tweet
You need a C++ compiler like gcc-c++ and CMake for compiling the binary.
You also need to install libpcaudio (libpcaudio-dev on Debian/Ubuntu, pcaudiolib-devel on Fedora/Red Hat).
Then run:
cmake .
make
sudo tcpdump -n -l dst net 192.0.2.1/32 $(for a in $(cat goog-prefixes.txt); do echo or dst net $a; done) | ./teller
Replace 192.0.2.1 with the IP address of your default gateway (e.g. your Internet router).
And then cry.
If tcpdump complains about Warning: Kernel filter failed: Cannot allocate memory, try
this first:
sudo sysctl net.core.optmem_max=204800
The list of Google services IP addresses can be found on this Google support page.
Note that this splits out Google services and Google cloud user IP addresses.