Virtual Linux is accomplished through many techniques, ranging from emulation to platform to OS virtualization. Indeed, Linux is a unique operating system in its breadth of virtualization solutions that are available. In this article, we'll explore the various ways that virtualization is achieved and then review the various solutions provided through virtual Linux. When we talk about virtualization solutions, we tend to talk about specific products offered by specific companies. But when we talk about virtualization solutions with Linux, we instead talk about a rich and diverse open source ecosystem.