By Ronald Deibert,John Palfrey,Rafal Rohozinski, et al.MIT Press|MIT Press||Adult NonfictionPoliticsLanguage(s): EnglishOn sale date: 05.06.2012Street date: 05.06.2012
A research of web blockading and filtering all over the world: analyses by way of prime researchers and survey effects that rfile filtering practices in dozens of nations.
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Additional resources for Access Denied. The Practice and Policy of Global Internet Filtering
Another South Korean ISP, KORNET, makes blocked sites resolve to an ominous police Web site. 10 Our tests revealed that there is often a combination of IP blocking and DNS tampering. It may be a signal that countries are responding to the outcry concerning the overblocking associated with IP blocking and moving to the targeting of specific domain names with DNS tampering. 11 In proxy-based filtering strategies, Internet traffic passing through the filtering system is reassembled and the specific HTTP address being accessed is checked against a list of blocked Web sites.
The first student to work on Internet filtering at the Berkman Center, Benjamin Edelman, now a professor at Harvard Business School, deserves thanks for his important role in the early days of this research. The country profiles were produced under the guidance and authorship of principal investigator Rafal Rohozinski and Vesselina Haralampieva for the Commonwealth of Independent States, Helmi Noman and Elijah Zarwan for the North Africa and Middle East region, and Stephanie Wang and Kevin O’Keefe for Asia.
IP blocking is effective in blocking the intended target and no new equipment needs to be purchased. It can be implemented in an instant; all the required technology and expertise is readily available. Depending on the network infrastructure within the country it may also be possible to block at or near the international gateways so that the blocking is uniform across ISPs. 3 Blocking techniques IP blocking DNS tampering Blockpage Keyword Azerbaijan X X Bahrain X X China X X EthiopiaX IndiaXX Iran XX JordanX LibyaX Myanmar X Oman X PakistanXX Saudi Arabia X Singapore X South KoreaXXX Sudan X Syria X Thailand X Tunisia X United Arab Emirates X Uzbekistan* X Vietnam XX Yemen X X Blocking behavior included in this table may include international gateway level filtering, and filtering techniques used by different ISPs.
Access Denied. The Practice and Policy of Global Internet Filtering by Ronald Deibert,John Palfrey,Rafal Rohozinski, et al.MIT Press|MIT Press||Adult NonfictionPoliticsLanguage(s): EnglishOn sale date: 05.06.2012Street date: 05.06.2012