In July, security researcher Dan Kaminsky revealed a flaw in the Web's domain name system, or DNS, the protocol that connects a Web site's name with its physical location on the Internet.

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Specifically, ICANN is responsible for coordinating the assignment of protocol parameters, overseeing the domain name system, allocating IP-address space and managing the root-server system.

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Some weaknesses, already well-known to hackers, foreign governments and, most likely, jihadists, have been exposed in two areas: the Domain Name System that VeriSign oversees and the Border Gateway Protocol, which governs how Internet service providers and large networks exchange routing information.

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Some Internet protocol addresses were linked to an Internet domain name registered to someone called Si Wen in Tianjin.

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Fast flux takes advantage of an option built into the Web's architecture, which allows site owners to switch the Internet Protocol address of a site without changing its domain name.

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This manages the internet's domain-name system of addresses, such as .com, and the underlying internet protocol numbers.

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Internet engineers also complain that RRP uses the Secure Sockets Layer protocol, which doesn't provide an audit trail for resolving domain-name disputes.

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