[tor-bugs] #32657 [Circumvention/Snowflake]: Investigate Snowflake blocking in China

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#32657: Investigate Snowflake blocking in China
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 Reporter:  cohosh                   |          Owner:  cohosh
     Type:  defect                   |         Status:  assigned
 Priority:  High                     |      Milestone:
Component:  Circumvention/Snowflake  |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:  blocking, china          |  Actual Points:
Parent ID:                           |         Points:
 Reviewer:                           |        Sponsor:  Sponsor28
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Comment (by dcf):

 Replying to [ticket:32657 cohosh]:
 > This almost certainly due to blocking, and as ambleclarity recently
 confirmed in #32597, not due to the blocking of STUN servers.

 Could it also be exacerbated by #32129, which has the proxy-go's polling
 every 5 s and the web-based proxies polling every 300 s? Blocking the
 single proxy-go IP address would therefore block a large fraction of
 effective proxies.

 But even so, that should only cause a failure rate of about 10%. https
 ://snowflake-broker.torproject.net/debug says:
 {{{
 current snowflakes available: 41
         standalone proxies: 4
         browser proxies: 0
         webext proxies: 37
         unknown proxies: 0
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32657#comment:2>
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