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Is Google Public DNS safe? Look at the source ports

Dec 07, 2009, 08:03 (1 Talkback[s])
(Other stories by Sean Michael Kerner)

"One of the big issues that security researcher Dan Kaminsky disclosed about DNS insecurity in 2008 was that DNS request information isn't quite as random as it should be. The way DNS works is that each DNS request is supposed to carry with it a random number transaction ID. But it turns out that the random number is only one out of 65,000. DNS is at risk when there isn't enough randomization and a hacker can 'guess' the number.

"So is Google's Public DNS random enough?"

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