Virtual Machine on linux

Hypervisor

• A hypervisor, also known as a virtual machine monitor (VMM) or virtualizer, is a type of computer software, firmware or hardware that creates and runs virtual machines.
• https://en.wikipedia.org/wiki/Hypervisor

Here is a list of some, (note that some of there allow use to view VM generated by other Hypervisor)

QEMU

• QEMU is an CLI and userspace program to manage emulation and virtualization and can use KVM when it creates virtual machines.
• https://en.wikipedia.org/wiki/QEMU

virsh

GNOME Boxed

• https://en.wikipedia.org/wiki/GNOME_Boxes

KVM (Kernel-based Virtual Machine)

• KVM is the technology in the Linux kernel for using accelerated virtualization.
• Kernel-based Virtual Machine (KVM) is a free and open-source virtualization module in the Linux kernel that allows the kernel to function as a hypervisor.
• https://en.wikipedia.org/wiki/Kernel-based_Virtual_Machine

libvirt

• libvirt provides an abstracted api for storage, network, computer, and virtualization. So other programs or people can manage it by one interface instead of manually
• Libvirt offers a single API to manage different hypervisors and virtualization technologies, including KVM and QEMU. This means that administrators and tools can use the same commands and API calls to manage VMs regardless of the underlying hypervisor.
• https://en.wikipedia.org/wiki/Libvirt

virt-manager

• A graphical interface for managing virtual machines, which uses libvirt in the background.
• https://en.wikipedia.org/wiki/Virt-manager
• https://virt-manager.org/

virsh

• A command-line tool provided by libvirt for managing VMs.
• Manage network resources:
  • sudo virsh net-list --all
  • sudo virsh net-start default - start default network
  • sudo virsh net-autostart default - to autostart on boot
• https://libvirt.org/manpages/virsh.html