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When I download a file from internet, either via HTTP or FTP, what is recorded on the other side? How much details is it possible to record, how many clues do I leave behind?

This question is not about being anonymous on internet but rather curiosity on what your computer transmits when establishing a connection to another server. What is in the packets?

Makach
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1 Answers1

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Maybe nothing, if the site keeps no logs. Right up to, recording every single packet -- not that I know of anyone doing that; an IDS would look every packet, but not necessarily record them.

The site would know"

  • everything you tell them (username, email, etc.) -- i.e. any form you filled out
  • your apparent IP address, or at least the end-point the site is communicating with (think ToR, VPN, etc.)
  • anything a 3rd party ad/statistics site might have collected on you (correlation -- by ip, cookie, etc -- with other sites visited, etc.)

For the perpetually paranoid, the question is what can't they know about you?

Ricky
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