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Deb Radcliff

Most Recent Posts by Deb Radcliff

The Life and Death of a Virtual Machine

Three years ago, Sesame Workshop, the nonprofit organization behind the "Sesame Street" television show, was looking at a $3 million data-center expansion to keep up with its Web, multimedia and data storage needs. Instead of expanding, however, the organization shrank its data center by consolidating 100 physical servers to 45 Novell SUSE Linux Enterprise Servers, then virtualizing 25 data-center servers into five physical machines.

"That data center has extra space now. And we're paying less for heating and cooling," says Noah Broadwater, vice president of IS at Sesame Workshop, in New York.

How to Root Out Rootkits

If you want to know about the latest malicious rootkit, ask security researcher Dino Dai Zovi. He'll tell you all about his proof of concept rootkit called Vitriol that uses virtual machine instructions in Intel processors to hide a rootkit at the virtualization layer.

He presented this information at BlackHat 2006, the same conference at which Joanna Rutkowski demonstrated her BluePill virtual rootkit that exploited AMD processors.

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