Virtualization – Page 5 – ITFROMZERO

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KVM Live Migration with virsh: Move VMs Between Hosts Without Downtime

By admin March 6, 2026

Live migration lets you move a running KVM virtual machine to another host without shutting it down. This guide walks through setting up NFS shared storage, configuring libvirtd for remote access, and performing the migration with virsh — including real-time monitoring and solutions to common errors.

Virtualization

How to Use libvirt to Manage KVM Virtual Machines from the Command Line (virsh)

By admin March 6, 2026

A complete virsh reference — the libvirt CLI tool for managing KVM virtual machines on Linux. Covers creating VMs, snapshots, cloning, monitoring, and debugging frozen VMs in the middle of the night. A practical guide for admins working without a GUI.

Virtualization

How to Install and Configure Proxmox Backup Server (PBS) for Automated VM Backups

By admin March 3, 2026

A step-by-step guide to setting up Proxmox Backup Server (PBS) for automated VM backups on Proxmox VE. Covers installation, creating a datastore, scheduling backup jobs, configuring prune policies, and restoring VMs — based on real-world experience running a 12-VM homelab.

Virtualization

KVM vs VirtualBox vs VMware: Choosing the Right Hypervisor for Your Use Case

By admin March 2, 2026

A comparison of KVM, VirtualBox, and VMware based on real benchmark performance, snapshots, networking, and guest integration — helping you choose the right hypervisor for each scenario: homelab, development, or production server.

Virtualization

KVM Installation and Usage Guide on Ubuntu: From Zero to Your First Virtual Machine

By admin March 1, 2026

KVM is a hypervisor built into the Linux kernel, offering better performance than VirtualBox and remaining stable after kernel updates. This guide covers installing KVM on Ubuntu, creating VMs from ISO using virt-install, and managing VMs daily with virsh — suitable for both servers and desktops.

Virtualization

Configuring Network Bridge and TAP Interface for KVM on Linux — Hands-On from the Homelab

By admin March 1, 2026

A guide to configuring a network bridge (br0) and TAP interface for KVM virtual machines on Linux — from concept to hands-on practice with Netplan and libvirt. VMs get a real IP on the LAN, connecting directly like a physical machine, no NAT involved.

Virtualization

How to Use Vagrant for a Consistent Dev Environment — No More ‘Works on My Machine’

By admin March 1, 2026

Vagrant standardizes dev environments with a Vagrantfile committed to git — putting an end to the 'works on my machine' problem. This article compares manual VMs, Docker, and Vagrant, analyzes when to use each, and provides a step-by-step setup guide from a single VM to a multi-machine production simulation.