Drop Tor users via bridges by over 2/3 in the beginning of March (was: Tor in China)

2010-03-10 Thread Paul Menzel
Am Mittwoch, den 10.03.2010, 13:27 +0100 schrieb Karsten Loesing:

[…]

 I figured out the problem. The metrics portal had the bridge user
 numbers from 2009-11-30 to 2010-01-05 imported twice. This affected all
 countries, but was simply most visible for Chinese bridge users. I
 removed those days from the stats and imported the descriptors again.
 
 The corrected graphs can be found on the graphs page:
 
   http://metrics.torproject.org/bridge-users-graphs.html#china

So my next question is, why did the users count drop that much in the
beginning of March?

[…]


Thanks,

Paul


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Re: Drop Tor users via bridges by over 2/3 in the beginning of March (was: Tor in China)

2010-03-10 Thread Flamsmark
On 10 March 2010 07:42, Paul Menzel paulepan...@users.sourceforge.netwrote:

 So my next question is, why did the users count drop that much in the
 beginning of March?


At the beginning of March, the great firewall of China blocked all (then)
known tor exits and relays, and a substantial number of bridges - presumably
enumerated over a prior, somewhat extended period.


Re: Drop Tor users via bridges by over 2/3 in the beginning of March (was: Tor in China)

2010-03-10 Thread Andrew Lewman
On Wed, 10 Mar 2010 08:31:06 -0500, Flamsmark flamsm...@gmail.com wrote:

:At the beginning of March, the great firewall of China blocked all (then)
:known tor exits and relays, and a substantial number of bridges - presumably
:enumerated over a prior, somewhat extended period.

This is our working theory as well.  Pending research involves which set of 
bridges were blocked; website, email, twitter/qq account, or all of them.

-- 
Andrew Lewman
The Tor Project
pgp 0x31B0974B

Website: https://www.torproject.org/
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