How to install VirtualBox 5.1 to RHEL/CentOS and Fedora
VirtualBox is a software that created for virtualization and it is open source x-platform. It is possible to be installed in all operating systems and give to user the capability to install and run a lot of “guest” operating systems in the same machine. A simple example is that if you install it in your Linux machine, then, you can ran Windows OS as a GuestOS and also the opposite. Same concept applies to more OS, which means that you can compine more than 2 with only limitation is your hard drive capacity and ofcourse your systems memory.