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Caching Torrent files in DNS
bodin writes "This is a proof of concept version of BitTorrent where the torrent files are transported over DNS. This will of course bog down BIND servers all over the planet. Everyone should be thankful that the files are not sent over DNS."
He's just talking about the .torrent file, which points to a torrent tracker, not the torrent data itself; and DNS works over TCP also.
The tracker does not allocate bandwidth, it just introduces peers to each other.
Plus, I don't see how this is going to put the huge strain on the DNS infrastructure that is implied, apart from the server hosting the torrent's TXT record anyway. Assuming no cached DNS information, I need to perform exactly the same number of DNS queries to resolve foo.domain.com to get a TXT record as I do get pull a tracker file from it. Judging by some of the posts here already some seem to think that the root DNS servers are going to have to handle terabytes of movies files or something, and that just isn't that case.
UNIX? They're not even circumcised! Savages!
If you read it you have to add a zone so it is not forcing anyone to do anything.
I didn't use the preview button, so get over it!!!!
Mike
Not only that, but DNS was designed to handle a lot of tiny requests, and a few huge requests. For the many many tiny requests, it uses UDP, and doesnt have to go through the overhead of a full-blown TCP connection. This is what makes it so scalable. If it has to send back more than 512 bytes (for a zone transfer or torrent file), it sets up a TCP connection, but in the case of a zone transfer, it doesnt have to do this very often.
For a typical name query, only two UDP segments are involved, one for the request and one for the response. If you were to request a torrent file, you would need the first three TCP handshaking segments, one to send the request, and then 1 or 2( depending on the machine setup) to send back the torrent file.
Normal DNS query: 2 segments
Torrent file DNS query: 5 or 6 segments
So that takes 2.5-3 times more processing time per request on the DNS server, and that doesnt even take into account the TCP session state.
Your credit card information wants to be free.
I discovered this the other day,
http://www.torrentsearch.org/
basically its a p2p program that downloads the whole database of
You can then search for torrents through the gui. You can then download the
nick
Electronic Music Made Using Linux http://soundcloud.com/polyp
Because sites hosting torrent files for illegal material (which nearly all of it is) will in many cases find themselves shutdown. Through the use of DNS caching it's impossible for any host to shutdown people's access to the tracker immediately.
Sounds like a neat program. Unfortunately, it sounds like a festering mound of virus that would singlehandedly OWN any machine it touches and any unfortunate user too impatient or stupid not to click "AGREE: Totally Hose My Machine". I'm quoting the EULA here, not making this stuff up. Gator's spyware is green with envy:
By accepting this agreement, I certify the following:
4) I understand that by accepting these terms and conditions, this program will be installed on my computer and my web browser home and search page will be changed in order to allow me access.
5) I also acknowledge that a Desktop toolbar will be installed on this system as a stand-alone module and that the Desktop toolbar will update itself from time to time in accordance with the EULA Privacy Policy.
6) I further understand that an accessory tool bar will be added to my web browser which will remain visible as long as the software is installed and agree that I wish to use your search engine for my
web browsers auto search option and default error age.
7) To insure you always have the latest version and for your convenience this software will automatically update itself from time to
time once installed in accordance with this EULA and Privacy Policy.
8) If you decide to change your homepage or search page at a later date this information ?the url? will be sent back to our servers and a pass-through toolbar will be installed at the bottom of your web
browser. This toolbar will remain active as long as this software is installed on your system.
9) I understand that, by accepting these terms and conditions, bookmarks will be added to my system, which may be removed manually or via un-installation of the software.
10) In order for us to keep this software free, from time to time promotional offers from our sponsors will be displayed to you.
11) To prevent your browser from becoming cluttered when our toolbar is installed, any other toolbars you currently have visible will
be deactivated. They can be restored manually through the IE view menu.
12) In order for this software to function properly, If incorrect host-file entries are detected for this software's related domain
names, those entries will be removed.
13) If you wish to uninstall this software you may do so at any time by going to your start menu, Control Panel, Add / Remove Programs, and then selecting this application. Additionally a separate uninstaller may be downloaded from the website the Sponsor Software installs
in your web browser, or you mail email support@lop.com for further assistance.
14) Bookmarking to a page on this server/site whereby this warning page is by-passed shall constitute an implicit acceptance of the
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And it does go on.