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# Download and burn on a DVD a copy of the CentOS 7 installation DVD (64 bit edition) from the CentOS web site or the Belmont server.<br>'''Note:''' we'll be using the 64 bit version of CentOS because all of our lab computers are equipped with Intel 64 bit mainboards and CPUs, and any computer you bought in the last few years for yourself will be 64bit as well.<br><br>
#* '''Seneca's mirror of CentOS:''' https://mirror.senecacollege.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso <br>This is very fast, but is only accessible from within Seneca's network - you can't access this from home. You can burn this disc on the machines in the Open Lab.)<br><br>
#* '''Outside Seneca College link (available from any Internet connection):<br>''' https://mirror.csclubnetflash.uwaterloo.canet/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso<br /><br># You need to refer to your OPS235 notes in order to install your host machine.<br>Here is a direct link:<br> [https://wiki.cdot.senecacollege.ca/wiki/OPS235_Lab_1_-_CentOS7_-_SSD2 OPS235 OPS245_Lab_1 OPS245 - Lab1]
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<li value=4>Customize your installation following these guidelines:
At this point you have a basic Centos system installed and updated. This will serve as a host for the virtual machines where you will do the majority of the work in this course. All the rest of our labs will assume you have this basic system running. If, for any reason, your system becomes corrupted during the semester, you'll have to redo this lab to be able to continue with the remaining uncompleted labs. You are responsible for YOUR system. If you do not perform back-ups you have taken this risk on yourself. Poor planning on your part does not constitute an emergency for anyone else.
'''Record steps, commands, and your observations in INVESTIGATION 1 in your OPS335 OPS235 lab log-book'''
==INVESTIGATION 2: VIRTUAL MACHINE INSTALLATION==
===Configuring a VM host===
# You will need to install some software to allow your machine to act as a host for virtual machines. We'll be using the same '''libvirt''' and '''virt-manager''' you used in [https://wiki.cdot.senecacollege.ca/wiki/OPS235_Lab_2#Part_2:_Configure_VMware_Workstation_for_Nested_VMs OPS235 - Lab2] ('''Investigation 1 - Part 2 only''').<br>You may find it helpful to refer back to the '''OPS235 notes''' to perform the following operations:
#* Install the required virtualization software
#* Start and enable the virtualization service
#* Stop and delete the '''default''' network.
#* Use the '''plus sign''' to add a new virtual network using the following options:
#:* Name your virtual network '''ops335ops235'''
#:* Use the '''last two digits of your student number for the third octet of network IP address''' (for example, if your student number is 000-000-0<b>90</b>, the network address would be 192.168.<b>90</b>.0/24.
#:* Ensure the DHCP range will allow you to assign '''at least 10 static IP addresses outside it''' (note: leave the low numbers available for static addresses).
