HowtoForge - Linux Howtos and Tutorials - Virtualization

Virtualization With Xen On CentOS 6.2 (x86_64) (Paravirtualization & Hardware Virtualization)

Sun, 29 Jan 2012 20:36:11 +0100

Virtualization With Xen On CentOS 6.2 (x86_64) (Paravirtualization & Hardware Virtualization)

This tutorial provides step-by-step instructions on how to install Xen (version 4.1.2) on a CentOS 6.2 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other, but still use the same hardware.

Converting A VMware Image To A Physical Machine

Fri, 27 Jan 2012 17:56:02 +0100

Converting A VMware Image To A Physical Machine

This tutorial shows how to convert an existing CentOS VM to a Physical machine. This tutorial covers the cloning of the VM to an unpartitioned HDD and troubleshoot some of the possible errors that you may have booting the OS on your new hardware. To illustrate this procedure I will use VMware Workstation 7 as the handler to transfer the VM installation to a physical HDD.

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless Ubuntu 11.10 Server

Sun, 22 Jan 2012 17:13:07 +0100

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless Ubuntu 11.10 Server

This guide explains how you can run virtual machines with VirtualBox 4.1 on a headless Ubuntu 11.10 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI.

Installing OpenVZ + Management Of VMs Through ISPConfig 3 (Debian 6.0)

Tue, 10 Jan 2012 17:36:21 +0100

Installing OpenVZ + Management Of VMs Through ISPConfig 3 (Debian 6.0)

This tutorial describes the installation of an OpenVZ host server to manage virtual machines from within the ISPConfig 3 hosting control panel. OpenVZ is a lightweight virtualization technology for Linux servers, similar to jails on *BSD systems. ISPConfig 3 contains a module to manage OpenVZ virtual machines on the local server and on remote servers that run ISPConfig.

Installing KVM Guests With virt-install On Ubuntu 11.10 Server

Thu, 24 Nov 2011 18:36:42 +0100

Installing KVM Guests With virt-install On Ubuntu 11.10 Server

Unlike virt-manager, virt-install is a command line tools that allows you to create KVM guests on a headless server. You may ask yourself: "But I can use vmbuilder to do this, why do I need virt-install?" The difference between virt-install and vmbuilder is that vmbuilder is for creating Ubuntu-based guests, whereas virt-install lets you install all kinds of operating systems (e.g. Linux, Windows, Solaris, FreeBSD, OpenBSD) and distributions in a guest, just like virt-manager. This article shows how you can use it on an Ubuntu 11.10 KVM server.

Virtualization With KVM On Ubuntu 11.10

Thu, 17 Nov 2011 16:18:05 +0100

Virtualization With KVM On Ubuntu 11.10

This guide explains how you can install and use KVM for creating and running virtual machines on an Ubuntu 11.10 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM). KVM is short for Kernel-based Virtual Machine and makes use of hardware virtualization, i.e., you need a CPU that supports hardware virtualization, e.g. Intel VT or AMD-V.

Installing And Using OpenVZ On CentOS 5.7

Thu, 03 Nov 2011 18:11:13 +0100

Installing And Using OpenVZ On CentOS 5.7

In this HowTo I will describe how to prepare a CentOS 5.7 server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.

How To Create A Debian Wheezy (Testing) OpenVZ Template

Tue, 13 Sep 2011 18:53:56 +0200

How To Create A Debian Wheezy (Testing) OpenVZ Template

This tutorial explains how to create an OpenVZ template for Debian Wheezy (Debian Testing) that you can use to create virtual Debian Wheezy machines under OpenVZ. I searched for a Debian Wheezy OpenVZ template, but couldn't find one, that's why I decided to create it myself. This guide can also be used for creating Debian Lenny templates and templates for recent Ubuntu versions.

Upgrade/Migrate VMware ESX / ESXi 4.* To ESXi 5.0

Fri, 09 Sep 2011 17:30:49 +0200

Upgrade/Migrate VMware ESX / ESXi 4.* To ESXi 5.0

VMware has recently released its new VM hypervisor product, VMware ESXi 5.0. VMware is replacing its current ESX model with ESXi and the biggest change (between ESX and ESXi) is the architecture, as most of you VM gurus are well aware of, but for the people that don't know I will quickly explain.

How To Upgrade VMware ESXi 3.5 To 4.1 Update 1 (Free Version)

Fri, 02 Sep 2011 14:03:36 +0200

How To Upgrade VMware ESXi 3.5 To 4.1 Update 1 (Free Version)

In this guide I will show you how to upgrade VMWare ESXi 3.5 to ESXi 4.1 Update 1 (Free Version) without going through the pain of reinstalling your host server and then restoring your VMs.

How To Install VMware Player On Ubuntu 11.04/Linux Mint 11

Wed, 31 Aug 2011 17:43:52 +0200

How To Install VMware Player On Ubuntu 11.04/Linux Mint 11

This tutorial provides step-by-step instructions on how to install VMware Player on an Ubuntu 11.04 or Linux Mint 11 desktop system. With VMware Player you can create and run guest operating systems ("virtual machines") such as Linux, Windows, FreeBSD, etc. on your desktop, i.e., you can run multiple operating systems on the same hardware which saves a lot of money.

Virtualization With KVM On A CentOS 6.0 Server

Thu, 25 Aug 2011 18:47:59 +0200

Virtualization With KVM On A CentOS 6.0 Server

This guide explains how you can install and use KVM for creating and running virtual machines on a CentOS 6.0 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM). KVM is short for Kernel-based Virtual Machine and makes use of hardware virtualization, i.e., you need a CPU that supports hardware virtualization, e.g. Intel VT or AMD-V.

Monitoring ESX/ESXi Servers

Fri, 29 Jul 2011 12:27:41 +0200

Monitoring ESX/ESXi Servers

The purpose is to highlight the most important topics related to setting up ESX/ESXi monitoring as well as applications hosted within managed virtual machines (a MySQL database is used in this tutorial).

Installing And Using OpenVZ On CentOS 6.0

Thu, 28 Jul 2011 18:31:48 +0200

Installing And Using OpenVZ On CentOS 6.0

In this HowTo I will describe how to prepare a CentOS 6.0 server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.

VBoxHeadless - Running Virtual Machines With VirtualBox 4.0 On A Headless CentOS 5.6 Server

Mon, 18 Jul 2011 18:04:03 +0200

VBoxHeadless - Running Virtual Machines With VirtualBox 4.0 On A Headless CentOS 5.6 Server

This guide explains how you can run virtual machines with VirtualBox 4.0 on a headless CentOS 5.6 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI.