Linux Tutorials on the topic “xen”

  • Virtualization With Xen On Debian Lenny (AMD64)

    xen Author: Falko Timme • Tags: , , • Comments: 9

    Virtualization With Xen On Debian Lenny (AMD64) This tutorial provides step-by-step instructions on how to install Xen on a Debian Lenny (5.0) system (AMD64). 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 (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.

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  • Virtualization With Xen 3.3.1 On Debian Etch

    xen Author: Falko Timme • Tags: , , • Comments: 2

    Virtualization With Xen 3.3.1 On Debian Etch This tutorial provides step-by-step instructions on how to install Xen on a Debian Etch (4.0) 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 (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.

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  • Back Up LVM XEN Guest Containing LVs

    xen Author: chriscowley • Tags: , , • Comments: 4

    Back Up LVM XEN Guest Containing LVs In my day-job all our Linux boxes (bar 3) are Xen VMs. I wanted a way to take a backup of these with out the risk of the files changing underneath. For performance reasons I am running all of them on Logical Volumes.Within these VMs the DomU OS is once again using LVM for various reasons. This does create some headaches for taking the backup.

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  • Installing Xen 3.3 With Kernel 2.6.27 On Ubuntu 8.10 (x86_64)

    xen Author: Falko Timme • Tags: , , • Comments: 18

    Installing Xen 3.3 With Kernel 2.6.27 On Ubuntu 8.10 (x86_64) This tutorial shows how you can install Xen 3.3 on an Ubuntu 8.10 host (dom0). Xen 3.3 is available from the Ubuntu 8.10 repositories, but the Ubuntu 8.10 kernels (2.6.27-x) are domU kernels, i.e., they work for Xen guests (domU), but not for the host (dom0). Therefore we need to build our own dom0 kernel. This guide explains how to do this with a 2.6.27 kernel.

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  • How To Run Fully-Virtualized Guests (HVM) With Xen 3.2 On Debian Lenny (x86_64)

    xen Author: Falko Timme • Tags: , , • Comments: 10

    How To Run Fully-Virtualized Guests (HVM) With Xen 3.2 On Debian Lenny (x86_64) This guide explains how you can set up fully-virtualized guests (HVM) with Xen 3.2 on a Debian Lenny x86_64 host system. HVM stands for HardwareVirtualMachine; to set up such guests, you need a CPU that supports hardware virtualization (Intel VT or AMD-V). Hardware virtualization allows you to install unmodified guest systems (in contrast to paravirtualization where the guest kernel needs to be modified); that way you cannot only virtualize OpenSource operating systems like Linux and BSD, but also closed-source operating systems like Windows where you cannot modify the kernel.

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  • How To Convert A Xen Virtual Machine To VMware

    Author: mannes • Tags: , , • Comments: 1

    How To Convert A Xen Virtual Machine To VMware This article explains how you can convert a Xen guest to a VMware guest. The steps descibed here assume advanced VMware and Xen knowledge.

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  • Xen: How to Convert An Image-Based Guest To An LVM-Based Guest

    xen Author: Falko Timme • Tags: , • Comments: 4

    Xen: How to Convert An Image-Based Guest To An LVM-Based Guest This short article explains how you can move/convert a Xen guest that uses disk images to LVM volumes. Virtual machines that use disk images are very slow and heavy on disk IO, therefore it's often better to use LVM. Also, LVM-based guests are easier to back up (using LVM snapshots).

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  • Creating A Fully Encrypted Para-Virtualised Xen Guest System Using Debian Lenny

    xen Author: andreash • Tags: , , , • Comments: 4

    Creating A Fully Encrypted Para-Virtualised Xen Guest System Using Debian Lenny This document explains how to set up a fully encrypted para-virtualized XEN instance. In this howto, the host system is running Debian Etch, while the guest system to be installed will be using Debian Lenny. If you are concerned about your privacy, you might want to consider using hard disk encryption to protect your valuable private data from spying eyes. Usually, the easiest way would be to use your distribution's installer to set up a fully encrypted system; I think most recent Linux distributions support this. However, when you are using XEN to provide virtualization, there are situations where you might not want to encrypt your whole computer with all guest instances, but instead only encrypt one OS instance. This howto will deal with exactly this situation. It assumes that the XEN host system is already up and running.

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  • Paravirtualization With Xen On CentOS 5.3 (x86_64)

    xen Author: Falko Timme • Tags: , , • Comments: 0

    Paravirtualization With Xen On CentOS 5.3 (x86_64) This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.3 (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 (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.

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  • Virtualization With XenServer 5.5.0

    xen Author: Falko Timme • Tags: , • Comments: 17

    Virtualization With XenServer 5.5.0 This Howto covers the installation of XenServer 5.5.0 and the creation of virtual machines with the XenCenter administrator console. XenServer is a free virtualization platform from Citrix, the company behind the well known Xen virtualization engine. XenServer makes it easy to create, run and manage Xen virtual machines with the XenCenter administrator console. The XenServer installation CD contains a full Linux distribution which is customized to run XenServer.

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