Wednesday, April 30, 2008

Virtualization - there is also a good security aspect

I was reading this article from NetworkWorld about "Virtual Server Sprawl" and the problems it causes to security. Well, while I agree with the point of view presented there, I also think the the ease to deploy a new server brought by virtualization can also help us to control an old security problem: servers with too many functions.Lots of people already said that VMs should be grouped by their sensitivity levels, and I agree with that. If organizations use virtualization to improve the segregation of duties of servers and keep the grouping concept, it will certainly help to improve network security. It was always sad to me to see those Web+DNS+SMTP servers. Now they can be kept on a single hardware, but with a higher isolation through virtualization.

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