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

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Re: Tor in China

2010-02-19 Thread onion . soup
http://metrics.torproject.org/bridge-users-graphs.html#china

if there is no clear explanation account for the doubling of the 
usage figure in the whole December, i would speculate that this is 
an error in the estimation. could anyone confirm this?


On Fri, 12 Feb 2010 13:26:22 +0800 onion.s...@nym.hush.com wrote:
http://metrics.torproject.org/bridge-users-graphs.html#china

The figure almost doubles in the whole December. These extra 
usages 
disappears after that. Does anyone know what happens?

On Thu, 11 Feb 2010 21:11:16 +0800 Runa Sandvik 
runa.sand...@gmail.com wrote:
On Thu, Feb 11, 2010 at 2:08 PM, Curious Kid
letsshareinformat...@yahoo.com wrote:
 From: Jon torance...@gmail.com

 To: or-talk@freehaven.net
 Sent: Wed, February 10, 2010 2:10:16 AM
 Subject: Re: Tor in China

 Am not sure if they are still blocking, but I presume there 
are 
some
 blocks still on, as the bridge usage is very high for users 
from
 there.

 Are you talking about who uses a bridge you operate? I hope 
there is not a way for people to know who uses bridges in 
general.

There is an estimate of the number of Chinese Tor users via 
bridges:
http://metrics.torproject.org/graphs.html#bridgeusers

-- 
Runa Sandvik
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Re: Tor in China

2010-02-19 Thread Andrew Lewman
On 02/19/2010 05:20 AM, onion.s...@nym.hush.com wrote:
 http://metrics.torproject.org/bridge-users-graphs.html#china
 
 if there is no clear explanation account for the doubling of the 
 usage figure in the whole December, i would speculate that this is 
 an error in the estimation. could anyone confirm this?

The best person to answer this is Karsten, and he's currently traveling.
  We await his answer.

-- 
Andrew Lewman
The Tor Project
pgp 0x31B0974B

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Re: Tor in China

2010-02-19 Thread Karsten Loesing
On 2/19/10 5:00 PM, Andrew Lewman wrote:
 On 02/19/2010 05:20 AM, onion.s...@nym.hush.com wrote:
 http://metrics.torproject.org/bridge-users-graphs.html#china

 if there is no clear explanation account for the doubling of the 
 usage figure in the whole December, i would speculate that this is 
 an error in the estimation. could anyone confirm this?
 
 The best person to answer this is Karsten, and he's currently traveling.
   We await his answer.

That's a fine question. It's already on my list. I'll let you know as
soon as I have a better answer than probably something wrong with the
measurements.

--Karsten
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Re: Tor in China

2010-02-11 Thread Curious Kid
 From: Jon torance...@gmail.com

 To: or-talk@freehaven.net
 Sent: Wed, February 10, 2010 2:10:16 AM
 Subject: Re: Tor in China
 
 Am not sure if they are still blocking, but I presume there are some
 blocks still on, as the bridge usage is very high for users from
 there.

Are you talking about who uses a bridge you operate? I hope there is not a way 
for people to know who uses bridges in general.



  

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Re: Tor in China

2010-02-11 Thread Runa Sandvik
On Thu, Feb 11, 2010 at 2:08 PM, Curious Kid
letsshareinformat...@yahoo.com wrote:
 From: Jon torance...@gmail.com

 To: or-talk@freehaven.net
 Sent: Wed, February 10, 2010 2:10:16 AM
 Subject: Re: Tor in China

 Am not sure if they are still blocking, but I presume there are some
 blocks still on, as the bridge usage is very high for users from
 there.

 Are you talking about who uses a bridge you operate? I hope there is not a 
 way for people to know who uses bridges in general.

There is an estimate of the number of Chinese Tor users via bridges:
http://metrics.torproject.org/graphs.html#bridgeusers

-- 
Runa Sandvik
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Re: Tor in China

2010-02-10 Thread Andrew Lewman
On 02/09/2010 07:36 PM, onion.s...@nym.hush.com wrote:
 Does anyone know if China is currently blocking Tor? Does the 
 situation described below persist?
 
 https://blog.torproject.org/blog/picturing-tor-censorship-in-china
 
 https://blog.torproject.org/blog/tor-partially-blocked-china

Yes.  China is still blocking public Tor relays by IP address and tcp
port combination.  It seems the censorship apparatus is updated
quarterly.  Non-public relays, or bridges, seem to work fine.

-- 
Andrew Lewman
The Tor Project
pgp 0x31B0974B

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Tor in China

2010-02-09 Thread onion . soup
Does anyone know if China is currently blocking Tor? Does the 
situation described below persist?

https://blog.torproject.org/blog/picturing-tor-censorship-in-china

https://blog.torproject.org/blog/tor-partially-blocked-china

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Re: Tor in China

2010-02-09 Thread Jon
Am not sure if they are still blocking, but I presume there are some
blocks still on, as the bridge usage is very high for users from
there.

On Tue, Feb 9, 2010 at 6:36 PM,  onion.s...@nym.hush.com wrote:
 Does anyone know if China is currently blocking Tor? Does the
 situation described below persist?

 https://blog.torproject.org/blog/picturing-tor-censorship-in-china

 https://blog.torproject.org/blog/tor-partially-blocked-china

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