by Caw » Thu Oct 23, 2014 10:01 am
So a VPN basically provides a tunnel between your PC and some other computer somewhere else. Everything that goes out of (and comes in to) your PC over the network is now encrypted between your computer and the computer somewhere else, at which point it looks like it normally would only it's coming from that computer's IP address instead of yours. The encryption means that your ISP can't snoop the traffic, doesn't know it's torrent traffic, and therefore can't punish/autodowngrade the speed or anything. The NSA could probably still snoop it (definitely could do it before Heartbleed was fixed).
But the VPN provider or it's ISP can certainly snoop the traffic coming out of the other end, say "hey, that traffic's coming from the VPN tunnel assigned to user X", and still fuck up your shit. Which is why you don't use a free VPN for shit that's globally considered illegal, you pay for one that's got a good reputation for purging their logs on a timely manner. (You use a free VPN when you want to google titty pictures in China, not when you want to use it like HBO Go). VPNs primarily provide <security>, not <privacy>. Privacy you have to shop around for.
The step up from that is a seedbox...downloading a torrent over a VPN is still dependent on your home upload/download speed. A "seedbox" is a cheap computer (or login to a computer) sitting somewhere else with a fat pipe to the internet. That cheep computer is running your torrent client, and you just upload the torrent file to it and then it uses it's fat pipe to download the thing as fast as it can (and seed a ton too, if you need to care about your ratio). Then you use some other sort of encrypted connection (sftp, scp, https) to download the files you want...the key being that unlike torrents, sftp and the others copy the files from start to finish, so if you have a fast enough home connection you can start watching a video after it's been downloading for a few minutes and it'll keep downloading while you're watching.