import the google captcha faq text
Roger Dingledine

Roger Dingledine commited on 2010-09-22 03:47:56
Zeige 1 geänderte Dateien mit 54 Einfügungen und 3 Löschungen.

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@@ -43,9 +43,14 @@ have a virus or spyware?</a></li>
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 <p>Running a Tor client:</p>
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 <ul>
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-<li><a href="#DoesntWork">I installed Tor and Polipo but it's not working.</a></li>
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-<li><a href="#VidaliaPassword">Tor/Vidalia prompts for a password at start.</a></li>
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-<li><a href="#ChooseEntryExit">Can I control which nodes (or country) are used for entry/exit?</a></li>
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+<li><a href="#DoesntWork">I installed Tor and Polipo but it's not
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+working.</a></li>
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+<li><a href="#VidaliaPassword">Tor/Vidalia prompts for a password at
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+start.</a></li>
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+<li><a href="#ChooseEntryExit">Can I control which nodes (or country)
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+are used for entry/exit?</a></li>
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+<li><a href="#GoogleCaptcha">Google makes me solve a Captcha or tells
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+me I have spyware installed.</a></li>
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 </ul>
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 <p>Running a Tor relay:</p>
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@@ -908,6 +913,52 @@ See the manual page for details.
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 <hr />
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+<a id="GoogleCaptcha"></a>
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+<h3><a class="anchor" href="#GoogleCaptcha">Google makes me solve a
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+Captcha or tells me I have spyware installed.</a></h3>
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+
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+<p>
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+This is a known and intermittent problem; it does not mean that Google
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+considers Tor to be spyware. Instead, Google tries to detect certain
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+kinds of spyware or viruses that send distinctive queries to Google
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+Search. It then notes the IP addresses from which those queries are
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+received, and tries to warn the users of those IP addresses that it
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+received queries indicating an infection.
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+</p>
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+
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+<p>
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+When you use Tor, you are sending queries through exit nodes that are also
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+shared by thousands of other users. If some of those users are infected
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+with software that Google detects, Google may mistakenly conclude that
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+the exit nodes themselves are infected (because the requests appeared
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+to originate from the exit nodes) and, for a limited period of time,
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+will try (incorrectly) to warn all Google users who share an exit node
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+with an infected machine that they are themselves infected.
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+</p>
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+
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+<p>
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+You may also get this sort of message when lots of Tor users are querying
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+Google in a short period of time. Google interprets the high volume of
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+traffic as somebody trying to "crawl" their website, so it slows down
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+traffic from that IP address for a short time.
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+</p>
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+
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+<p>
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+To our knowledge, Google is not doing anything intentionally specifically
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+to deter or block Tor use. The error message about an infected machine
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+should clear up again after a short time.
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+</p>
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+
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+<p>
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+If we think of a measure that would prevent users from seeing this sort of
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+spurious warning message, we will certainly suggest it to Google and to
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+other web site developers. There may also be technical workarounds for
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+Tor end-users affected by this problem; if you find a useful workaround
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+and write up a description of it, please let us know.
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+</p>
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+
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+<hr />
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+
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 <a id="RelayFlexible"></a>
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 <h3><a class="anchor" href="#RelayFlexible">How stable does my relay
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 need to be?</a></h3>
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