Security concerning Tor, BitTorrent and Firewall
Tony at tdrmail.co.uk
Mon Feb 19 20:19:39 UTC 2007
For basic anonymity for bit torrent leeching try this https://www.relakks.com/
TOR doesn't have the bandwidth to spare.
From: owner-or-talk at freehaven.net [mailto:owner-or-talk at freehaven.net] On Behalf Of a a
Sent: 19 February 2007 19:49
To: or-talk at seul.org
Subject: Security concerning Tor, BitTorrent and Firewall
Tor & Privoxy & Vidalia bundle 0.1.1.26
Windows XP Home
I am using Tor behind a 3com firewall, in connection with µTorrent.
Before using Tor I -naturally, having not opened any ports on the
firewall- experienced low connection (up&down) rates in µTorrent. However,
after installing the Tor bundle and configuring µTorrent for use with the
Tor proxy server (as described at
93c23cec9198550816a114012bde0), I suddenly experienced connection speeds
which would equal those, had I used a normal port forward on my firewall.
Firstly, how does this work?
Secondly -on account of a port forward always being a security risk- Is
this a similar security risk?
And lastly, if it is indeed a security risk (no matter how small), does
this apply to other programs than BitTorrent clients, using the Tor proxy
I first inquired with the Privoxy about this issue (presuming that it
was related to Privoxy) and I recieved the following response:
> --- Date: 2007-02-19 13:17 Sender: fabiankeil </users/fabiankeil/> ---
> Are you sure that your provider doesn't throttle BitTorrent traffic?
> By using Tor you prevent your ISP from knowing which services (other
> than Tor itself) you're using and this could explain why using Tor
> speeds up your BitTorrent traffic (it's no longer rate limited by your
> ISP). Privoxy itself is unlikely to have anything to do with it and I
> don't think port forwarding has anything to do with it either, but I'm
> not familiar with BitTorrent. The short answer to your last questions
> is "No", but as it has nothing to do with Privoxy you should checkout
> the Tor documentation for details and ask again on the or-talk mailing
> list if you have further questions.
I am fairly certain that my ISP is not the issue here, so I remain
puzzled... And I've so far not found any answers in the Tor documentation.
Anybody got something on this?
More information about the tor-talk