662 lines
25 KiB
XML
662 lines
25 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE chapter [
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<!ENTITY % openstack SYSTEM "../common/entities/openstack.ent">
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%openstack;
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]>
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<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:id="lab000-virtualbox-basics">
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<title>VirtualBox Basics</title>
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<para><guilabel>Getting Started</guilabel></para>
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<para>The following are the conventional methods of deploying
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OpenStack on Virtual Box for the sake of a test/sandbox or just to
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try out OpenStack on commodity hardware.</para>
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<para>1. DevStack</para>
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<para>2. Vagrant</para>
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<para>But DevStack and Vagrant bring in some level of automated
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deployment as running the scripts will get your VirtualBox
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Instance configured as the required OpenStack deployment. We
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will be manually deploying OpenStack on VirtualBox Instance to
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get better view of how OpenStack works.</para>
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<para><guilabel>Prerequisite:</guilabel></para>
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<para>Well, its a daunting task to just cover all of OpenStack’s
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concepts let alone Virtualization and Networking. So some basic
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idea/knowledge on Virtualization, Networking and Linux is
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required. Even though I will try to keep the level as low as
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possible for making it easy for Linux Newbies as well as
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experts.</para>
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<para>These Virtual Machines and Virtual Networks will be given
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equal privilege as a physical machine on a physical
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network.</para>
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<para>Just for those who would want to do a deeper research or
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study, for more information you may refer the following
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links</para>
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<para><emphasis role="bold">OpenStack:</emphasis>OpenStack
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Official Documentation (docs.openstack.org)</para>
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<para><emphasis role="bold">Networking:</emphasis>Computer
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Networks (5th Edition) by Andrew S. Tanenbaum</para>
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<para><emphasis role="bold">VirtualBox:</emphasis>Virtual Box
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Manual (http://www.virtualbox.org/manual/UserManual.html)</para>
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<para><emphasis role="bold">Requirements :</emphasis></para>
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<para>Operating Systems - I recommend Ubuntu Server 12.04 LTS,
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Ubuntu Server 13.10 or Debian Wheezy</para>
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<para><emphasis role="bold">Note :</emphasis>Ubuntu 12.10 is not
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supporting OpenStack Grizzly Packages. Ubuntu team has decided not
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to package Grizzly Packages for Ubuntu 12.10.</para>
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<itemizedlist>
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<listitem>
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<para>Recommended Requirements.</para>
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</listitem>
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</itemizedlist>
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<informaltable class="c25">
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<tbody>
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<tr>
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<td rowspan="1" colspan="1">VT Enabled PC:</td>
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<td rowspan="1" colspan="1">Intel ix or AMD QuadCore</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">4 GB RAM:</td>
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<td rowspan="1" colspan="1">DDR2/DDR3</td>
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</tr>
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</tbody>
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</informaltable>
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<itemizedlist>
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<listitem>
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<para>Minimum Requirements.</para>
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</listitem>
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</itemizedlist>
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<informaltable class="c25">
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<tbody>
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<tr>
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<td rowspan="1" colspan="1">Non-VT PC's:</td>
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<td rowspan="1" colspan="1">Intel Core 2 Duo or Amd Dual
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Core</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">2GB Ram:</td>
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<td rowspan="1" colspan="1">DDR2/DDR3</td>
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</tr>
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</tbody>
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</informaltable>
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<para>If you don't know whether your processor is VT enabled, you
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could check it by installing cpu checker:</para>
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<screen><prompt>#</prompt> <userinput>apt-get install cpu-checker</userinput>
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<prompt>#</prompt> <userinput>kvm-ok</userinput></screen>
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<para>If your device does not support VT it will show:</para>
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<screen><computeroutput>INFO:Your CPU does not support KVM extensions
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KVM acceleration can NOT be used</computeroutput></screen>
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<para>You will still be able to use Virtual Box but the instances
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will be very slow.</para>
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<para>There are many ways to configure your OpenStack Setup, we
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will be deploying OpenStack Multi Node using OVS as the Network
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Plugin and QEMU/ KVM as the hypervisor.</para>
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<para><emphasis role="bold">Host Only Connections:</emphasis></para>
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<itemizedlist>
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<listitem>
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<para>Host only connections provide an Internal network
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between your host and the Virtual Machine instances up and
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running on your host machine.This network is not traceable
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by other networks.</para>
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</listitem>
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<listitem>
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<para>You may even use Bridged connection if you have a
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router/switch. I am assuming the worst case (one IP without
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any router), so that it is simple to get the required
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networks running without the hassle of IP tables.</para>
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</listitem>
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<listitem>
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<para>The following are the host only connections that you
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will be setting up later on :</para>
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</listitem>
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</itemizedlist>
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<orderedlist>
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<listitem>
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<para>vboxnet0 - OpenStack Management Network - Host static IP
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10.10.10.1</para>
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</listitem>
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<listitem>
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<para>vboxnet1 - VM Conf.Network - Host Static IP
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10.20.20.1</para>
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</listitem>
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<listitem>
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<para>vboxnet2 - VM External Network Access (Host
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Machine) 192.168.100.1</para>
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<para><emphasis role="bold">Network Diagram :</emphasis></para>
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</listitem>
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</orderedlist>
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<figure>
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<title>Network Diagram</title>
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<mediaobject>
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<imageobject>
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<imagedata contentwidth="4in" fileref="figures/lab000-virtual-box/image03.png"/>
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</imageobject>
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</mediaobject>
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</figure>
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<para>Publicly editable image source at <link
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xlink:href="https://docs.google.com/drawings/d/1GX3FXmkz3c_tUDpZXUVMpyIxicWuHs5fNsHvYNjwNNk/edit?usp=sharing"
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>https://docs.google.com/drawings/d/1GX3FXmkz3c_tUDpZXUVMpyIxicWuHs5fNsHvYNjwNNk/edit?usp=sharing</link></para>
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<para>Vboxnet0, Vboxnet1, Vboxnet2 - are virtual networks setup up
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by virtual box with your host machine. This is the way your host
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can communicate with the virtual machines. These networks are in
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turn used by virtual box VM’s for OpenStack networks, so that
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OpenStack’s services can communicate with each other.</para>
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<para><guilabel>Setup Your VM Environment</guilabel></para>
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<para>Before you can start configuring your Environment you need to
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download some of the following stuff:</para>
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<orderedlist>
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<listitem>
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<para><link xlink:href="https://www.virtualbox.org/wiki/Downloads">
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Oracle Virtual Box</link></para>
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</listitem>
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</orderedlist>
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<para>Note:You cannot set up a amd64 VM on a x86 machine.</para>
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<orderedlist>
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<listitem>
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<para><link xlink:href="http://www.ubuntu.com/download/server">
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Ubuntu 12.04 Server or Ubuntu 13.04 Server</link></para>
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</listitem>
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</orderedlist>
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<para>Note:You need a x86 image for VM's if kvm-ok fails, even
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though you are on amd64 machine.</para>
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<para>Note: Even Though I'm using Ubuntu as Host, the same is
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applicable to Windows, Mac and other Linux Hosts.</para>
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<itemizedlist>
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<listitem>
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<para>If you have i5 or i7 2nd gen processor you can have VT
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technology inside VM's provided by VmWare. This means that
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your OpenStack nodes(Which are in turn VM's) will give
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positive result on KVM-OK. (I call it - Nesting of type-2
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Hypervisors). Rest of the configurations remain same except
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for the UI and few other trivial differences.</para>
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</listitem>
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</itemizedlist>
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<para><guilabel>Configure Virtual Networks</guilabel></para>
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<itemizedlist>
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<listitem>
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<para>This section of the guide will help you setup your
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networks for your Virtual Machine.</para>
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</listitem>
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<listitem>
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<para>Launch Virtual Box</para>
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</listitem>
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</itemizedlist>
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<itemizedlist>
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<listitem>
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<para>Click on <emphasis role="bold"
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>File>Preferences</emphasis> present on the menu bar of
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Virtual Box.</para>
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</listitem>
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<listitem>
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<para>Select the <emphasis role="bold">Network
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tab</emphasis>.</para>
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</listitem>
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<listitem>
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<para>On the right side you will see an option to add
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Host-Only networks.</para>
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</listitem>
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</itemizedlist>
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<figure>
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<title>Create Host Only Networks</title>
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<mediaobject>
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<imageobject>
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<imagedata fileref="figures/lab000-virtual-box/image13.png"
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contentwidth="6in"/>
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</imageobject>
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</mediaobject>
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</figure>
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<itemizedlist>
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<listitem>
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<para>Create three Host-Only Network Connections. As shown
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above.</para>
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</listitem>
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<listitem>
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<para>Edit the Host-Only Connections to have the following
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settings.</para>
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</listitem>
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</itemizedlist>
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<para><emphasis role="bold">Vboxnet0</emphasis></para>
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<informaltable class="c25">
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<tbody>
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<tr>
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<th rowspan="1" colspan="1">Option</th>
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<th rowspan="1" colspan="1">Value</th>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv4 Address:</td>
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<td rowspan="1" colspan="1">10.10.10.1</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv4 Network Mask:</td>
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<td rowspan="1" colspan="1">255.255.255.0</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv6 Address:</td>
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<td rowspan="1" colspan="1">Can be Left Blank</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv6 Network Mask Length :</td>
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<td rowspan="1" colspan="1">Can be Left Blank</td>
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</tr>
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</tbody>
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</informaltable>
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<figure>
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<title>Vboxnet0</title>
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<mediaobject>
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<imageobject>
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<imagedata fileref="figures/lab000-virtual-box/image19.png"
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contentwidth="6in"/>
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</imageobject>
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</mediaobject>
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</figure>
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<para><emphasis role="bold">Vboxnet1</emphasis></para>
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<informaltable class="c25">
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<tbody>
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<tr>
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<th rowspan="1" colspan="1">Option</th>
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<th rowspan="1" colspan="1">Value</th>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv4 Address:</td>
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<td rowspan="1" colspan="1">10.20.20.1</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv4 Network Mask:</td>
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<td rowspan="1" colspan="1">255.255.255.0</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv6 Address:</td>
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<td rowspan="1" colspan="1">Can be Left Blank</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv6 Network Mask Length :</td>
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<td rowspan="1" colspan="1">Can be Left Blank</td>
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</tr>
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</tbody>
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</informaltable>
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<figure>
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<title>Vboxnet1</title>
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<mediaobject>
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<imageobject>
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<imagedata fileref="figures/lab000-virtual-box/image16.png"
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contentwidth="6in"/>
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</imageobject>
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</mediaobject>
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</figure>
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<para><emphasis role="bold">Vboxnet2</emphasis></para>
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<informaltable class="c25">
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<tbody>
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<tr>
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<th rowspan="1" colspan="1">Option</th>
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<th rowspan="1" colspan="1">Value</th>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv4 Address:</td>
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<td rowspan="1" colspan="1">192.168.100.1</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv4 Network Mask:</td>
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<td rowspan="1" colspan="1">255.255.255.0</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv6 Address:</td>
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<td rowspan="1" colspan="1">Can be Left Blank</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">IPv6 Network Mask Length :</td>
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<td rowspan="1" colspan="1">Can be Left Blank</td>
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</tr>
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</tbody>
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</informaltable>
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<figure>
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<title>Image: Vboxnet2</title>
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<mediaobject>
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<imageobject>
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<imagedata fileref="figures/lab000-virtual-box/image08.png"
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contentwidth="6in"/>
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</imageobject>
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</mediaobject>
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</figure>
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<para><guilabel>Install SSH and FTP</guilabel></para>
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<itemizedlist>
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<listitem>
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<para>You may benefit by installing SSH and FTP so that you
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could use your remote shell to login into the machine and
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use your terminal which is more convenient that using the
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Virtual Machines tty through the Virtual Box's UI. You get a
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few added comforts like copy - paste commands into the
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remote terminal which is not possible directly on VM.</para>
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</listitem>
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<listitem>
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<para>FTP is for transferring files to and fro ... you can
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also use SFTP or install FTPD on both HOST and VM's.</para>
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</listitem>
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<listitem>
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<para>Installation of SSH and FTP with its configuration is
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out of scope of this GUIDE and I may put it up but it
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depends upon my free time. If someone wants to contribute to
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this - please do so.</para>
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</listitem>
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</itemizedlist>
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<para><emphasis role="bold">Note:</emphasis>Please set up the
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Networks from inside the VM before trying to SSH and FTP into the
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machines. I would suggest setting it up at once just after the
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installation of the Server on VM's is over.</para>
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<para><guilabel>Install Your VM's Instances</guilabel></para>
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<itemizedlist>
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<listitem>
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<para>During Installation of The Operating Systems you will be
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asked for Custom Software to Install , if you are confused
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or not sure about this, just skip this step by pressing
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Enter Key without selecting any of the given Options.</para>
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</listitem>
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</itemizedlist>
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<para><emphasis role="bold">Warning</emphasis> - Please do not
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install any of the other packages except for which are mentioned
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below unless you know what you are doing. There is a good chance
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that you may end up getting unwanted errors, package conflicts ...
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due to the same.</para>
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<para><guilabel>Control Node:</guilabel></para>
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<para>Create a new virtual machine. Select Ubuntu Server</para>
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<figure>
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<title>Create New Virtual Machine</title>
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<mediaobject>
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<imageobject>
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||
<imagedata fileref="figures/lab000-virtual-box/image11.png"
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contentwidth="6in"/>
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</imageobject>
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||
</mediaobject>
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</figure>
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<para>Select the appropriate amount of RAM. For the control node,
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the minimum is 512 MB of RAM. For other settings, use the
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defaults. The hard disk size can be 8 GB as default.</para>
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<para>Configure the networks</para>
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<para>(Ignore the IP Address for now, you will set it up from
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inside the VM)</para>
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<informaltable class="c25">
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||
<tbody>
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<tr>
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<th rowspan="1" colspan="1">Network Adapter</th>
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<th rowspan="1" colspan="1">Host-Only Adapter Name</th>
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<th rowspan="1" colspan="1">IP Address</th>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">eth0</td>
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<td rowspan="1" colspan="1">Vboxnet0</td>
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<td rowspan="1" colspan="1">10.10.10.51</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">eth1</td>
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<td rowspan="1" colspan="1">Vboxnet2</td>
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<td rowspan="1" colspan="1">192.168.100.51</td>
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</tr>
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<tr>
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<td rowspan="1" colspan="1">eth2</td>
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<td rowspan="1" colspan="1">NAT</td>
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<td rowspan="1" colspan="1">DHCP</td>
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||
</tr>
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||
</tbody>
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||
</informaltable>
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||
<para><emphasis role="bold">Adapter 1 (Vboxnet0)</emphasis></para>
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<figure>
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<title>Adapter1 - Vboxnet0</title>
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<mediaobject>
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||
<imageobject>
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||
<imagedata fileref="figures/lab000-virtual-box/image07.png"
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||
contentwidth="6in"/>
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||
</imageobject>
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||
</mediaobject>
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||
</figure>
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<para><emphasis role="bold">Adapter 2 (Vboxnet2)</emphasis></para>
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<figure>
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||
<title>Adapter2 - Vboxnet2</title>
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||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image18.png"
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||
contentwidth="6in"/>
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||
</imageobject>
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||
</mediaobject>
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||
</figure>
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||
<para><emphasis role="bold">Adapter 3 (NAT)</emphasis></para>
|
||
<figure>
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||
<title>Adapter3 - NAT</title>
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||
<mediaobject>
|
||
<imageobject>
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||
<imagedata fileref="figures/lab000-virtual-box/image14.png"
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||
contentwidth="6in"/>
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||
</imageobject>
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||
</mediaobject>
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||
</figure>
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||
<para>Now Install Ubuntu Server 12.04 or 13.04 on this
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machine.</para>
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<para><emphasis role="bold">Note :</emphasis>Install SSH server
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when asked for Custom Software to Install. Rest of the packages
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are not required and may come in the way of OpenStack packages -
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like DNS servers etc. (not necessary). Unless you know what you
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are doing.</para>
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<para><guilabel>Network Node:</guilabel></para>
|
||
<para>Create a new Virtual Machine,</para>
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<para>Minimum RAM is 512 MB. Rest all can be left default. Minimum
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HDD space 8 GB.</para>
|
||
<figure>
|
||
<title>Create New Virtual Machine</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image12.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para>Configure the networks</para>
|
||
<para>(Ignore the IP Address for now, you will set it up from
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inside the VM)</para>
|
||
|
||
<informaltable class="c25">
|
||
<tbody>
|
||
<tr>
|
||
<th rowspan="1" colspan="1">Network Adapter</th>
|
||
<th rowspan="1" colspan="1">Host-Only Adapter Name</th>
|
||
<th rowspan="1" colspan="1">IP Address</th>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth0</td>
|
||
<td rowspan="1" colspan="1">Vboxnet0</td>
|
||
<td rowspan="1" colspan="1">10.10.10.52</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth1</td>
|
||
<td rowspan="1" colspan="1">Vboxnet1</td>
|
||
<td rowspan="1" colspan="1">10.20.20.52</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth2</td>
|
||
<td rowspan="1" colspan="1">Vboxnet2</td>
|
||
<td rowspan="1" colspan="1">192.168.100.52</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth3</td>
|
||
<td rowspan="1" colspan="1">NAT</td>
|
||
<td rowspan="1" colspan="1">DHCP</td>
|
||
</tr>
|
||
</tbody>
|
||
</informaltable>
|
||
<para><emphasis role="bold">Adapter 1 (Vboxnet0)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter 1 - Vboxnet0</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image05.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para><emphasis role="bold">Adapter 2 (Vboxnet1)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter2 - Vboxnet1</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image17.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para><emphasis role="bold">Adapter 3 (Vboxnet2)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter3 - Vboxnet2</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image02.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para><emphasis role="bold">Adapter 4 (NAT)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter4 - NAT</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image00.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para>Now Install Ubuntu Server 12.04 or 13.04 on this
|
||
machine.</para>
|
||
<para><emphasis role="bold">Note :</emphasis>Install SSH server
|
||
when asked for Custom Software to Install. Rest of the packages
|
||
are not required and may come in the way of OpenStack packages -
|
||
like DNS servers etc. (not necessary). Unless you know what you
|
||
are doing.</para>
|
||
<para><guilabel>Compute Node:</guilabel></para>
|
||
<para>Create a virtual machine with at least 1,000 MB RAM and
|
||
8 GB HDD. For other settings, use the defaults.</para>
|
||
<figure>
|
||
<title>Create New Virtual Machine</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image04.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para>Configure the networks</para>
|
||
<para>(Ignore the IP Address for now, you will set it up from
|
||
inside the VM)</para>
|
||
|
||
<informaltable class="c25">
|
||
<tbody>
|
||
<tr>
|
||
<th rowspan="1" colspan="1">Network Adapter</th>
|
||
<th rowspan="1" colspan="1">Host-Only Adapter Name</th>
|
||
<th rowspan="1" colspan="1">IP Address</th>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth0</td>
|
||
<td rowspan="1" colspan="1">Vboxnet0</td>
|
||
<td rowspan="1" colspan="1">10.10.10.53</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth1</td>
|
||
<td rowspan="1" colspan="1">Vboxnet1</td>
|
||
<td rowspan="1" colspan="1">10.20.20.53</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="1" colspan="1">eth2</td>
|
||
<td rowspan="1" colspan="1">NAT</td>
|
||
<td rowspan="1" colspan="1">DHCP</td>
|
||
</tr>
|
||
</tbody>
|
||
</informaltable>
|
||
<para><emphasis role="bold">Adapter 1 (Vboxnet0)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter1 - Vboxnet0</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image15.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para><emphasis role="bold">Adapter 2 (Vboxnet1)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter2 - Vboxnet1</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image10.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para><emphasis role="bold">Adapter 3 (NAT)</emphasis></para>
|
||
<figure>
|
||
<title>Adapter3 - NAT</title>
|
||
<mediaobject>
|
||
<imageobject>
|
||
<imagedata fileref="figures/lab000-virtual-box/image01.png"
|
||
contentwidth="6in"/>
|
||
</imageobject>
|
||
</mediaobject>
|
||
</figure>
|
||
<para>Now Install Ubuntu Server 12.04 or 13.04 on this
|
||
machine.</para>
|
||
<para><emphasis role="bold">Note :</emphasis>Install SSH server
|
||
when asked for Custom Software to Install. Rest of the packages
|
||
are not required and may come in the way of OpenStack packages -
|
||
like DNS servers etc. (not necessary). Unless you know what you
|
||
are doing.</para>
|
||
<para><guilabel>Warnings/Advice :</guilabel></para>
|
||
<itemizedlist>
|
||
<listitem>
|
||
<para>Well there are a few warnings that I must give you out
|
||
of experience due to common habits that most people may
|
||
have :</para>
|
||
</listitem>
|
||
</itemizedlist>
|
||
<para>Sometimes shutting down your Virtual Machine may lead to
|
||
malfunctioning of OpenStack Services. Try not to direct
|
||
shutdown your 3. In case your VM's don't get internet.</para>
|
||
<itemizedlist>
|
||
<listitem>
|
||
<para>From your VM Instance, use <command>ping</command>
|
||
command to see whether Internet is on.</para>
|
||
<screen><prompt>$</prompt> <userinput>ping www.google.com</userinput></screen>
|
||
</listitem>
|
||
<listitem>
|
||
<para>If its not connected, restart networking
|
||
service:</para>
|
||
<screen><prompt>#</prompt> <userinput>service networking restart</userinput>
|
||
<prompt>#</prompt> <userinput>ping www.google.com</userinput></screen>
|
||
</listitem>
|
||
<listitem>
|
||
<para>If this doesn't work, you need to check your network
|
||
settings from Virtual Box, you may have left something or
|
||
misconfigured it.</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>This should reconnect your network about 99% of the
|
||
times. If you are really unlucky you must be having some
|
||
other problems or your Internet connection itself is not
|
||
functioning.</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>Note :There are known bugs with the ping under NAT.
|
||
Although the latest versions of Virtual Box have better
|
||
performance, sometimes ping may not work even if your
|
||
Network is connected to internet.</para>
|
||
</listitem>
|
||
</itemizedlist>
|
||
<para>Congrats, you are ready with the infrastructure for
|
||
deploying OpenStack. Just make sure that you have installed
|
||
Ubuntu Server on the above setup Virtual Box Instances. In the
|
||
next section we will go through deploying OpenStack using the
|
||
above created Virtual Box instances.</para>
|
||
|
||
</chapter>
|