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[liberationtech] Appelbaum's Ultrasurf report

Jacob Appelbaum jacob at
Tue Apr 17 16:37:55 PDT 2012

On 04/17/2012 07:23 PM, Stefan Geens wrote:
> Jacob Appelbaum: "I believe and I said in the report that the GFW
> appears to be blocking access *from* Ultrasurf."
> One further data point to support your thesis:
> Outside China, when I use Witopia's VPN to surf the net and try to
> visit, or some other China-hosted site, the GFW
> indeed blocks access INTO China. This behavior started maybe 4-6
> months ago.

Yes, I find that actually a useful way to test if a tool would even work
at all in China - can users of the tool access sites in China?
Obviously, it depends on the kind of blocking - IP blocking and specific
protocol blocking will elicit different results.

All the best,

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