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A Quick Investigation of EdgeCast CDN Blocking in China

Posted on 2014-11-182016-07-21 By joss

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This morning, GreatFire.org published a story stating that EdgeCast CDN, one of the more popular content distribution networks that handles content for a number of large websites, has been blocked by the Chinese national filter. As a result, a friend …

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Chinese Internet Filtering: The Curious Case of the Florida Pet Club

Posted on 2012-12-232016-07-21 By joss

Of the various ways to filter the internet, manipulating DNS is probably the simplest and cheapest in terms of resources. DNS, the Domain Name Service, is the mapping between the human-readable URLs that we use, like https://www.pseudonymity.net, and the …

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Workshop on Free and Open Communications on the Internet (FOCI’12)

Posted on 2012-03-31 By joss

Following on from the fantastically interesting FOCI workshop last year, I am co-chairing this year’s FOCI workshop along with Roger Dingledine of the Tor Project. The workshop will again be co-located with USENIX Security, which is being held this year …

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Presentation on Mapping Chinese Censorship

Posted on 2011-12-29 By joss

I recently presented my work on censorship mapping to my colleagues at the OII, including a couple of maps with early analysis of DNS manipulation in Chinese cities.

The analysis is very preliminary, and there are considerable caveats even …

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Freedom of Communication on the Internet Workshop (FOCI): Fine-Grained Censorship Mapping — Information Sources, Legality and Ethics

Posted on 2011-11-02 By joss

This year saw the first workshop on Freedom of Communications on the Internet, co-located with USENIX Security in San Francisco. My contribution, co-authored with Ian Brown and Tulio de Souza, focused both on the means for mapping censorship in …

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Experiences of Chinese Internet Censorship

Posted on 2011-09-12 By joss

I was recently invited to speak at Dalian Technical University, in Liaoning Province in Northern China, and took the opportunity afterwards to spend three weeks travelling around China with my family. (Finally putting several years of studying Mandarin into practice, …

Posted in Censorship, ChinaTagged oii2 Comments

Freedom of Communications on the Internet (FOCI) Workshop

Posted on 2011-02-27 By joss

I’m on my way back from the Workshop on Free and Open Communication on the Internet (FOCI) that was held in the last few days at Georgia Tech in Atlanta. Hosted by Nick Feamster, FOCI brought together a number …

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Wikileaks Lessons for Privacy-Enhancing Technologies

Posted on 2010-12-10 By joss

I had been studiously avoiding writing about Wikileaks. I’ve been interviewed a couple of times in the last few days on various aspects of the ongoing saga, though, and it has highlighted some points that I think are worth mentioning. …

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Amazon’s Kindle and Anti-Censorship in China

Posted on 2010-11-09 By joss

There’s been quite a media buzz in the last few days regarding the ability of Amazon’s new 3G Kindle to bypass China’s Great Firewall[1]. I was recently interviewed on BBC World News about how the Kindle does this, …

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Recent Posts

  • A Quick Investigation of EdgeCast CDN Blocking in China
  • Open Rights Group Report: “Digital Surveillance”
  • Chinese Internet Filtering: The Curious Case of the Florida Pet Club
  • Workshop on Free and Open Communications on the Internet (FOCI’12)
  • Discussing Online Privacy in the Observer, with Tom Chatfield

Recent Posts

  • A Quick Investigation of EdgeCast CDN Blocking in China
  • Open Rights Group Report: “Digital Surveillance”
  • Chinese Internet Filtering: The Curious Case of the Florida Pet Club
  • Workshop on Free and Open Communications on the Internet (FOCI’12)
  • Discussing Online Privacy in the Observer, with Tom Chatfield

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  • Mike on Experiences of Chinese Internet Censorship
  • Han-Teng Liao on Experiences of Chinese Internet Censorship

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