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Re: [tor-talk] Fox News bans my Tor Browser
On 1/16/2015 5:28 PM, l.m wrote:
Yes, I'm sure Torbuttons' New Identity is more anonymous (safer) than
And I use it. But what I find happens - more than a few times, when a
site doesn't like an Tor exit (it's IP, or it's location), using New
Identity often selects another circuit *very* similar to the previous;
often definitely in the same country & similar IPa to previous one.
When that happens, site still block Tor (fairly often).
TBB's new identity feature is considered more anonymity safe .
Vidalia's new identity doesn't consider how inter-tab traffic can
identify you. It also doesn't consider how changes to the browser
window make you unique (and trackable) across changed identities. TBB
will close open tabs and shutdown any traffic that may cross
identities. It also resets the browser window to some common size
within Tor's user-base.
UPSHOT: When sites block or require captcha (captchas often don't work)
from a geo-location or from a range of IPa's, clicking the New Identity
button often doesn't fix anything. But, I've found dozens or hundreds
of times, it's not because the sites "block all Tor." It's because they
block specific countries, IPs - or ranges of them. Torbutton "New
Identity" doesn't handle this very well, - from the aspect - of getting
you connected to a site that blocked exits from specific countries.
I'm not sure of a better solution for this.
Just one example: Say, https://ixquick.com/ (or Startpage), requires a
captcha. Getting a new identity *often* doesn't remove the captcha
requirement - but sometimes does.
I started looking at possible reasons why. Using Vidalia (*ONLY* so I
could see the circuit locations, IPa's, etc.).
It became clear, at times, that simply closing the existing circuit,
then watching (in Vidalia) the new circuit & exits - OFTEN in the same
country, or had similar IPa, still caused Ixquick (and MANY other
sites) to still block or require captcha. Captchas that may / may not work.
I notice the same thing using "New Identity" button (while observing
countries, relay names, IPs, etc. of the old & New Identity).
Repeatedly getting a New Identity often doesn't fix the blocking or
presenting captchas. On many sites. I'm guessing it's often because
the exit relay locations (countries) and / or IPa ranges, etc., are too
close to the last one.
Often, if I Torbutton new identities enough times in a row, that
through ? luck of the draw?, the exit relay geo-location and / or IPa
range changes significantly, the sites then work fine. Five successive,
new identities - all w/ exits in "XYZ-stan(s)" countries may never allow
access to a site. Then work immediately on getting an exit in Germany,
US. (Note: I'm not biased against relays base on their country - but
the sites blocking them are.)
Thanks for link / info on TrackHostExits & AllowDotExit.
Reading those command descriptions, sounds like they're useful mainly if
you "must" access a site w/ Tor, but don't care so much about anonymity?
Which may be acceptable, depending on one's reason for Tor - on a given
site. Just as long as a user knows the risks.
TrackHostExits host -- try to reuse exits for the host 
AllowDotExit -- specify an exit to use with an address using dot
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