Server virtualization has many benefits, including savings on hardware, power, and cooling, as well as simplified management. Anyone who's been in IT for any length of time has dealt with a computer that was infected with spyware, a virus, or possibly a rootkit. If the infected computer is a physical machine, you can at least shut it down or unplug it from the network to prevent further infection. But what if the infected computer is a virtual machine (VM)? Or worse, what if the infected computer is a VMware ESX host?
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