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Stories tagged with: xen
How To Enable Networking In Xen Guests On Hetzner's New EQ Servers (Debian Lenny)
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http://www.howtoforge.com/how-to-enable-networking-in-xen-gu...
This tutorial shows how you can enable networking in Xen guests (domU) on Hetzner's new EQ servers. With the new EQ servers, you can get up to three additional IPs that are in the same subnet as the server's main IP. The problem is that these additional IPs are bound to the MAC address of the host system (dom0) - Hetzner's routers will dump IP packets if they come from an unknown MAC address. This means we cannot use Xen's bridged mode, but must switch to Xen's routed mode where the host system (dom0) acts as the gateway for the guests.
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Virtualization With XenServer 5.5.0
28 / 1
http://www.howtoforge.com/virtualization-with-xenserver-5.5....
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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Submitted by falko
4 months, 4 weeks, 5 hours agoTags: xenserver, xen, virtualization, virtual machine, xencenter
Paravirtualization With Xen On CentOS 5.3 (x86_64)
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http://www.howtoforge.com/paravirtualization-with-xen-on-cen...
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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Submitted by falko
6 months, 1 week, 3 days agoTags: xen, centos, virtualization, paravirtualization
Creating A Fully Encrypted Para-Virtualised Xen Guest System Using Debian Lenny
23 / 6
http://www.howtoforge.com/creating-a-fully-encrypted-para-vi...
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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Submitted by falko
6 months, 3 weeks, 3 days, 6 hours agoTags: xen, encryption, virtualization, virtual machine, debian
Xen Live Migration Of An LVM-Based Virtual Machine With iSCSI On Debian Lenny
30 / 0
http://www.howtoforge.com/xen-live-migration-of-an-lvm-based...
This guide explains how you can do a live migration of an LVM-based virtual machine (domU) from one Xen host to the other. I will use iSCSI to provide shared storage for the virtual machines in this tutorial. Both Xen hosts and the iSCSI target are running on Debian Lenny in this article.
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Submitted by falko
6 months, 3 weeks, 6 days, 5 hours agoTags: xen, live migration, iscsi, virtualization, virtual machine
Xen: How to Convert An Image-Based Guest To An LVM-Based Guest
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http://www.howtoforge.com/xen-how-to-convert-an-image-based-...
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 is often better to use LVM. Also, LVM-based guests are easier to back up (using LVM snapshots).
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Submitted by falko
7 months, 1 week, 1 day, 5 hours agoTags: xen, lvm, images, virtualization, virtual machine
How To Run Fully-Virtualized Guests (HVM) With Xen 3.2 On Debian Lenny (x86_64)
23 / 6
http://www.howtoforge.com/how-to-run-fully-virtualized-guest...
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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Submitted by falko
8 months, 2 weeks, 6 days, 3 hours agoTags: xen, hvm, debian, lenny, intel vt, amd-v
Xen Cluster Management With Ganeti On Debian Lenny
31 / 0
http://www.howtoforge.com/xen-cluster-management-with-ganeti...
Ganeti is a cluster virtualization management system based on Xen. In this tutorial I will explain how to create one virtual Xen machine (called an instance) on a cluster of two physical nodes, and how to manage and failover this instance between the two physical nodes.
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Submitted by falko
8 months, 3 weeks, 4 days, 3 hours agoTags: ganeti, xen, cluster, debian, lenny, virtualization
Installing Xen 3.3 With Kernel 2.6.27 On Ubuntu 8.10 (x86_64)
28 / 2
http://www.howtoforge.com/installing-xen-3.3-with-kernel-2.6...
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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Submitted by falko
9 months, 2 days, 4 hours agoTags: xen, ubuntu, intrepid, dom0, domu, virtualization
Virtualization With Xen 3.3.1 On Debian Etch
26 / 3
http://www.howtoforge.com/virtualization-with-xen-3.3.1-on-d...
This tutorial provides step-by-step instructions on how to install Xen 3.3.1 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.
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Submitted by falko
9 months, 2 weeks, 4 hours agoTags: xen, debian, etch, virtualization, virtual machine, dom0
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