Virtualization for Newbies: Top Four Reasons to Go Virtual

In general, the idea behind virtualization is to make many from one. As an example, from one physical server using virtualization software, multiple virtual machines can run as if each virtual machine were a separate physical box. In data centers, before virtualization, one or more applications and an operating system would run on their own unique physical server. Since each one of those physical servers needed floor or rack space, there was a problem of the growing size and number of data centers that businesses needed in IT. As more and more physical servers were added to run the ever growing number of virtual machines, this led to “data center sprawl.” Using virtualization to consolidate the number of physical servers reversed the trend of data center sprawl, and companies began to see a cost savings.

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Why You Should Use Multi-Step Authentication

Authentication is one of the essential components of security. It is one part of the concept known as authentication, authorization, and accounting (AAA). AAA stands for authentication, authorization, and accounting. Authentication is the process of claiming an identity then proving that you are that claimed identity. Authorization is the mechanism to control what you can access or do. Accounting is the recording of events into a log in order to review the activities against the rules and policies in order to detect violations or confirm compliance. All three of these should be addressed when constructing a system in order to have a reasonable foundation for reliable security.

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