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Re: [tor-bugs] #30350 [Obfuscation/Snowflake]: Hello, in China, currently, Tor Browser 8.5a11 version can't connect to Tor network through Snowflake bridge.



#30350: Hello, in China, currently, Tor Browser 8.5a11 version can't connect to Tor
network through Snowflake bridge.
-----------------------------------+--------------------------
 Reporter:  amiableclarity2011     |          Owner:  cohosh
     Type:  defect                 |         Status:  accepted
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:                         |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:
-----------------------------------+--------------------------

Comment (by cohosh):

 Replying to [comment:13 dcf]:
 > Replying to [comment:12 amiableclarity2011]:
 > > Obviously China's firewall can recognize the characteristic of the
 traffic which flows to Snowflake proxies and automatically block the
 Snowflake proxies that I use.
 >
 > Not necessarily. Another explanation is the the firewall has only
 blocked the IP address of one of the proxies. When you use Snowflake, you
 are assigned one of the available proxies randomly. As you browse, your
 proxy might change. It may be, that after 40 minutes you were assigned the
 proxy whose IP address is blocked.
 >
 > We are working on changes to reduce the problem of being assigned a
 blocked proxy: #20813, #25723.
 We're also doing some probe tests of snowflake proxies from China here:
 #30368

 So far it looks like there are still unblocked snowflake proxies, but I'll
 post results once we have more data points.

 Also, fwiw, 40 minutes is a long time to go without having gotten a
 blocked proxy. My guess is that you were randomly assigned a different
 proxy that happened to be blocked due to #25429 at the end of that time.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30350#comment:14>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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