On May 5, 2010, at 4:39 PM, Mikael Abrahamsson wrote:

>  I was also under the impression that it wasn't by IP but that they could 
> block specific youtube videos etc.

They use a combination of IP blocking, DNS poisoning, and transparent HTTP 
proxy-based URL filtering.

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Roland Dobbins <[email protected]> // <http://www.arbornetworks.com>

    Injustice is relatively easy to bear; what stings is justice.

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