What is a KVM?

KVM stands for Kernel-based Virtual Machine, which is an open-source virtualization technology built into the Linux kernel. It allows a physical server to run multiple isolated virtual environments called virtual machines (VMs). Each VM has its own operating system and resources, managed by the KVM hypervisor. KVM is widely used in cloud computing and server consolidation due to its performance, scalability, and ability to run unmodified Linux or Windows images. It supports hardware virtualization extensions and integrates well with management tools like libvirt and QEMU.