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What are the different Linux virtualization Techniques?

Hostpaedia Supports 3 virtualization techniques : OpenVZ, XEN, KVM.

  1. OpenVZ : OpenVZ is an operating system-level virtualization technology based on the Linux kernel and operating system. OpenVZ allows a physical server to run multiple isolated operating system instances, known as containers, Virtual Private Servers (VPSs), or Virtual Environments (VEs). It is similar to FreeBSD jails and Solaris Zones. OpenVZ is not true virtualization but really containerization like FreeBSD Jails. Technologies like VMWare and Xen are more flexible in that they virtualize the entire machine and can run multiple operating systems. 
  2. XEN : Xen is a Hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently. Xen is a native, or bare-metal hypervisor. It runs in a more privileged CPU state than any other software on the machine.
  3. KVM : Kernel-based Virtual Machine (KVM) is a virtualization infrastructure for the Linux kernel. KVM supports hardware-assisted virtualization on processors with hardware virtualization extensions. It supports almost all Linux distribution and also has been ported to FreeBSD and Illumos in the form of loadable kernel modules.

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