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sawireless
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torrent tracker blocking through web proxy

Wed Nov 23, 2011 1:49 pm

Good Day

Has anyone have a script that can find all torrent trackers?

Regards

Sa Wireless
 
CCDKP
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Re: torrent tracker blocking through web proxy

Wed Nov 23, 2011 4:16 pm

The short answer, no.
The long answer, yes, mostly.

Torrent traffic is specifically designed to avoid detection and blocking. Even if you block tracker traffic, things like SSL trackers and encrypted DHT allow peer exchanges that make it almost impossible to detect.

You can greatly cripple torrent traffic, however, through a Layer 7 filter and blocking some DNS entries. You can also restrict UDP access to force bittorrent over onto TCP, which can be managed by QoS (UDP doesn't respond well to QoS).

Also, bittorrent clients "leak", so even if they are doing everything right to encrypt and hide, once in a while to do trip traditional detection methods. This means you can use things like temporary address lists to block or restrict all of the user's traffic for a set amount of time after some torrent traffic has been detected.

I know It's probably not the simple copy and paste answer you were looking for, but there is a lot of good information and theory in this thread:
http://forum.mikrotik.com/viewtopic.php?f=2&t=21178
CC_DKP: MTCNA, MTCRE, MTCWE, MTCTCE, part-time packet wrangler
 
JorgeAmaral
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Re: torrent tracker blocking through web proxy

Thu Nov 24, 2011 12:44 am

How about searching for the word "tracker" on the dns cache and poison it?
 
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janisk
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Re: torrent tracker blocking through web proxy

Thu Nov 24, 2011 9:29 am

there are services that uses torrent to move update files around, some popular games does for sure :)

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