Re: [tor-talk] sock proxy port

[Roger Dingledine <arma@xxxxxxx>]

On Fri, Nov 09, 2012 at 01:27:03PM -0600, Joe Btfsplk wrote:
> >https://www.torproject.org/docs/faq#TBBSocksPort
> >
> That article mentions OS X / Linux, but I don't know that the issue
> of Tor using other random ports (in the FAQ) does NOT apply also to
> Windows?

The Windows TBB doesn't set the ports to auto, since too many crappy
Windows antivirus tools freak out when a program asks the OS to select
what port it will bind to. So Windows TBB users have 9050 and 9051
by default.

> Is there any security / anonymity difference, if Tor or TBB uses
> ports other than 9050?  e.g., 127.0.0.1:6xxxx

There is a tiny difference: see point 1 at
https://www.torproject.org/torbutton/en/design/index.html.en#preferences

But it shouldn't matter much.

> If I have say, Thunderbird configured to use the Tor (TBB) proxy -
> 127.0.0.1:9050, then that's what my FW - network monitor shows it's
> using.  But shows TBB / Tor are using other ports.
> Mostly still on local 127.0.0.1, but not port 9050.  With another
> application configured to use Tor (or no other apps using Tor), Tor
> also uses a few "regular" IP addresses, in ADDITION to
> 127.0.0.1:xxxxx addresses; probably DNS lookup, or similar.

I'm guessing you're looking at outbound connections, not listener
connections, in whatever 'network monitor' this is.

--Roger

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