this post was submitted on 20 Sep 2023
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Privacy
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What do you mean? Is that needed for torrenting?
I have been using mullvad for a month and have 2 tb of Linux isos, should I expect a call from someone?
The BitTorrent protocol basically works like this when you download a torrent:
As soon as you have something downloaded, you become a client on the list of the tracker that theoretically has the torrent available for others. So you would become the "client being asked" of step 3 as well.
But how can you be asked? In a P2P networking context, you can only "be asked" if you have a port open that allows connections to it. Otherwise it's as if you gave people your home adress but your mailbox has a hole on the bottom that leads directly to the garbage can beneath it, so all mail is immediately lost. Completely unusable.
In other words, it's (basically) impossible for you to send the torrent data to someone else. You're a leecher, someone that doesn't give back to others. If everyone would act like you, torrents wouldn't work at all.
Isn't this what STUN is for?
It's not that simple. Who hosts that server? Which torrent clients implemented support for it? What about symmetric NATs?
In short: no. In long: read up on it yourself.