by logan » Sep 24 08 12:15 am
Ooo golly, that's a REALLY difficult question, because torrents have no standard way of communicating. The port is random and can be changed at the snap of a finger. And the downloads come from other users on the p2p network rather than a centrally identifiable server. Therefore, I know of only three ways to help eliminate the problem.
1. Using the WWW Proxy policies, block all URL's ending with '.torrent' as this is the format of the files which tell the torrent client how to start the download. Without the torrent file, the download cannot be started.
2. Under Extended Networking -> Port Security, change the default action for the 'client computers to the internet' zone to 'deny', then allow only particular ports that you deem fit. This will prevent the clients from making connections to any ports other than the ports you specify.
3. If you have an Enterprise license, you can use the WinGate Internet Client and central policies to prevent the uTorrent clients from connecting to the Internet. The WGIC is an application level connection method and has the ability to do this easily.