The Kernel-based Virtual Machine (KVM) has arrived in the enterprise sector. The integrated open-source virtualization solution within the Linux kernel is continuously evolving with broad support. This book is aimed at Linux system administrators who want to implement KVM in practice. After an introduction to the fundamentals of virtualization, it demonstrates possible applications of KVM and its associated components. The book provides practical solutions to everyday tasks using common enterprise distributions such as Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and Ubuntu: it describes the installation of host and guest systems, the tools of the Libvirt library, possible storage connections, network configuration, potential deployment strategies, and backup methods. Additionally, it addresses the migration of existing physical systems.