#* '''Seneca's mirror of CentOS:''' https://mirror.senecacollege.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-18102009.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>''' httphttps://mirror.netflash.net/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-18102009.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] {{Admon/tip |Boot order|Some of our machines' boot order is configured to be Harddrive first, DVD second. Which means you won't be able to boot from the DVD if you already have an operating system installed on your drive.}}

<li>Click the link to '''create them (partitions ) automatically''' (this will give a typical layout with /, /boot, /boot/efi, /home, etc).

<li>Make certain that the existing partitions '''except SWAP swap, /boot and EFI /boot/efi''' have the file system type '''ext4''' (not xfs).

'''Record steps, commands, and your observations in INVESTIGATION 1 in your OPS335 OPS235 lab log-book'''

# 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 OPS235- Lab2].<br>You may find it helpful to refer back to the '''OPS235 notes''' to perform the following operations:

#:* Name your virtual network '''ops335ops235'''

#Issue the following command to download Bash shell script to check your host machine's set-up prior to proceeding with this lab:<br>'''wget http://matrixict.senecac.onsenecacollege.ca/~murrayandrew.saulsmith/ops335/labcheck_install.sh'''<br>

'''NOTE:''' You will need an ISO file for CentOS 7 (the same one you burned your DVD from). It is recommended to use the command:<br> '''<span style="text-decoration:none;color:blue;">wget httpshttp://mirror.senecacollegecsclub.uwaterloo.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-18102009.iso</span>'''<br>to download this image onto your host machine. In this way, you can keep it on your host machine for the remainder of this course in case you need it. 

'''ssh your_seneca_id@matrix.senecac.onsenecacollege.ca'''<ol><li value="3">If that did not work - make sure GlobalProtect VPN is installed on your Windows/Mac and connected. If it is, ensure your CentOS network interface is started automatically on boot.</li></ol>

<li value="5">Use yum to install Install the '''bind-utils''' package. The commands it provides (e.g. nslookup) will be useful in troubleshooting your network connection.</li><li>Configure You may also want to install the virtual machine '''nmap''', '''telnet''' and '''net-tools''' packages to use help you troubleshoot connectivity issues.</li><li>Configure '''firewalld, iptables''' and (instead of firewalldif required) '''SELinux''' the same way you did for the host.</li>

<li value="2"> Now that you have one virtual machine working, you will create two more. If you struggled with the previous steps, repeat them to create two more virtual machines.</li><li>'''If you are confident with what you have done so far, you may clone your existing machine to create the others by performing the following steps:'''</li><li><ol type="a"> <li>Make certain that your '''vm1''' virtual machine is shutdown.</li> <li>For your '''vm1''' machine, go to the details section and remove the <u>device</u> '''Channel qemu-ga'''.</li> <li>In the virtual machine manager, '''right click''' on ''vm1'' and select '''Clone...'''.</li> <li>Set the Name to be: '''vm2'''</li></ol></li><li>Once successfully created, boot the new VM and correct the host name. This can be done using the '''hostnamectl''' command-line tool.</li></ol>  {{Admon/important |Errors When Booting Clone|If you experience errors when starting the "Cloned" VM, go to the clone's details section (i.e. when you open the VM, but not start it, then select: ''View'' then ''Details'') and remove the <u>device</u> '''Channel qemu-ga'''.<br>It is recommended to follow that procedure, since if you don't, you would only be permitted to start the "cloned VM" if the original VM (used to create the clone) is already running.<br><br>'''Repeat this procedure for any additional "cloned VM" that you create for this course'''.}}  <ol><li value="4">Record in your notes the steps for cloning a vm.</li>

<li>After creating '''vm2 ''' repeat the above steps to create '''vm3 ''' and correct the host namehostname ('''vm2.localdomain''' and '''vm3.localdomain''' respectively).</li>

'''Depending You may choose to:* Submit screenshots of your work on your professor Blackboard, in which case you will either be asked don't need to come to submit the lab in class.* Or come to the lab, show me your work, or onlineand talk to me about it. Follow the appropriate set of instructions below''I want to hear what you've learned and answer any questions you have.

===Online Submission (Peter CallaghanYou's Classes only)===Follow ll get the instructions for lab 0 on blackboardsame grade regardless of how you choose to submit your work.

===In Class Submission (Murray Saul's Classes only)===[[Image:lab1_signoff.png|thumb|right|500px|Students should be prepared with '''all required commands (system information) displayed in a terminal (or multiple terminals) prior to calling the instructor for signoff'''.]]'''Arrange evidence (command output) for each Expected results of these items on your screen, then ask your instructor to review them and sign off on the this lab's completionare:'''

::<span style="color:green;font-size:1.5em;">&#x2713;</span> Run the '''labcheck_install.sh''' shell script on your hostmachine to show your professor the resultshost machine<br-->