On Mon, 2009-05-25 at 09:50 +0800, jida...@jidanni.org wrote: > Tony Baldwin writes: > > > I'm just guessing here, but I honestly thought killing the client > > should stop the incoming connections from seeking the ip, so I'm a > > little confused, and curious about the matter, now that you've brought > > it up. > > I've used transsmission(1). When one wants to stop torrenting, > transsmission spends several seconds saying proper goodbyes to the > tracker or whatever, then exits. > > What I assume is happening here is when I connect to my ISP, the > previous user of that IP address has not said these proper goodbyes, > hence 'the liquor store has been converted to a church but not all the > previous customer know that so they keep on knocking on the door'.
I was under the impression -- perhaps incorrect -- that it takes time for information about which nodes are still available on the network at any given time to spread across the network. I wouldn't necessarily presume that the previous user hasn't said his "proper goodbyes," just that the fact that he has signed off hasn't registered everywhere yet. Likewise, when you shut down transmission, what it does is send your transfer totals to the tracker (which is really only relevant if you're using a private tracker, or some other tracker that needs to know your ratios for some reason) and disconnects. But your availability on the network has already spread to other clients connected to the same trackers you're connected to, and in turn from them to still more clients that will connect to those trackers. The clients don't broadcast information about who has signed on or off -- they only attempt to establish a connection when they're needing connections. So someone coming on to the network, say, 15 minutes after you've left might still try to connect to you because his client is getting information from another client that doesn't know yet that you've left (because it has not attempted to establish a connection with your client in the time since you left). In a reasonably short period of time, every client that knew about you will figure out that you are no longer available, and will stop passing on your information. It's kind of a daisy chain of information, where everybody's information is not exactly up-to-the-minute, but it's current enough for the network to function effectively. If everybody on the network knew, instantly, when any given person had signed on or off, then it wouldn't really be a decentralized network. -- Michael M. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
