Paul D. Brown wrote:
Let's see if I understand: I download one file by bt, and other people can connect to 6881 on my machine to download from me. I start a second simultaneous bt download of another file. Others can now connect to me on port 6882 to download the second file from me?Quoting from the bittorrent FAQ at http://btfaq.com/serve/cache/25.html (no doubt elsewhere as well): Prior to version 3.2, BitTorrent by default uses ports in the range of 6881-6889. As of 3.2 and later, the range has been extended to 6881-6999. (These are all TCP ports, BitTorrent does not use UDP.) The client starts with the lowest port in the range and sequentially tries higher ports until it can find one to which it can bind. This means that the first client you open will bind to 6881, the next to 6882, etc. Therefore, you only really need to open as many ports as simultaneous BitTorrent clients you would ever have open. For most people it's sufficient to open 6881-6889.
Paul
This strikes me as slightly loopy given http seems to be able to serve many files using just one open port...
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