VMware

Install VMware virtualization to linux (testing on RHEL 5,6)

Dowload "VMware Workstation for Linux 64-bit" from https://www.vmware.com (must be loged, at first you need fill registration). File have about 433 MB.
Install it:

 sh VMware-Workstation-Full-10.0.3-1895310.x86_64.bundle