Difference between revisions of "OPS705 Lab 2"

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(Part 2: Adding a User in CentOS)
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# '''Choose a base:''' CentOS-based 7.8
 
# '''Choose a base:''' CentOS-based 7.8
# '''Virtual machine name:''' yourSenecaUsername
+
# '''Virtual machine name:''' yourSenecaUsername-lnx
# '''User name:''' yourSenecaUsername-lnx
+
# '''User name:''' yourSenecaUsername
 
# '''Authentication type:''' Password
 
# '''Authentication type:''' Password
 
# '''Use a saved secret:''' Unchecked
 
# '''Use a saved secret:''' Unchecked
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# Log in remotely using SSH.
 
# Log in remotely using SSH.
 
# Run the following command: <code>sudo useradd -G wheel chris.johnson</code>
 
# Run the following command: <code>sudo useradd -G wheel chris.johnson</code>
# Run the following command, supplying a temporary password that you will e-mail to me: <code>sudo passwd chris.johnson ''temppass''</code>
+
# Run the following command to add a password: <code>sudo passwd chris.johnson</code>
 +
# In the prompt, enter the temporary password that you will e-mail to me. You won't see any characters on screen, so take your time!
 +
# To double-check you've entered the new password correctly, try switching to the user. If the password you enter doesn't work, re-run Step 3. <code>su chris.johnson</code>
 
# Notify me by e-mail you've created that account, and include the temporary password.
 
# Notify me by e-mail you've created that account, and include the temporary password.
  

Revision as of 10:43, 24 September 2020

LAB PREPARATION

Purpose / Objectives of Lab 2

In this lab, you will learn how to create Windows and Linux virtual machines using a pre-built image, how to remotely connect to each, and basic management of these VMs from the Azure web interface. These two VMs will be used extensively in your later labs. This lab assumes you have completed Lab 1 successfully. Refer back to that lab for reminders on the basics of the Azure Dashboard interface.

While you are working through this lab, it is highly recommended that you write down general notes and commands to help you remember how to do this lab. You may use your notes during tests, so fill it out accordingly!

If you encounter technical issues, please contact your professor via e-mail or in your section's Microsoft Teams group.

Minimum Requirements

Before beginning, you must have:

  1. Successfully completed Lab 1
  2. Watched the Week 2 video lecture
  3. Read through the Week 2 slides, and have them handy as a reference for concepts
  4. Your Seneca Azure login credentials
  5. Your linked mobile device for 2FA

INVESTIGATION 1: Managing a Windows Server 2016 VM in Azure

In this investigation, you'll create, configure, and manage a Windows Server 2016 Virtual Machine using Microsoft Azure and a pre-built image. This means no tedious and time-consuming Windows installation! You'll also login to the VM remotely, using Microsoft's Remote Desktop Protocol to share its desktop.

Part 1: Creating A Windows VM From An Image

Figure 1. A partial view of the Basics tab on the VM creation page.

To create your Windows Server 2016 Virtual machine, perform the following steps:

  1. Navigate to DevTest Labs > OPS705 > My virtual machines
  2. Click the + Add button.
  3. Wait for the Choose a base listing to populate. This may take a few moments.
  4. In the search field, type: Windows Server 2016 Datacenter
  5. Select the item titled Windows Server 2016 Datacenter exactly. Be careful here! There are many other options.
  6. A new blade, Create lab resource appears.
  7. In the Virtual machine name field, type: yourSenecaUsername-win (you only have 15 characters, you may need to abbreviate)
  8. Username: yourSenecaUsername
  9. Use a saved secret: Unchecked
  10. Password: Your choice, but use the same for all VMs and resources in this course.
  11. Save as default password: Checked.
  12. Virtual machine size: Standard_B2ms
  13. Leave the remaining options as they are.
  14. Click on the Create button at the bottom of the screen.
  15. You are now back in the My virtual machines blade while Azure creates your personal virtual machine. This may take a few minutes.
  16. When it finishes, you should see a Your deployment is complete. message near the top of the page. Congratulations!
  17. Click on the Go to resource button at the bottom left of the page and move on to the next section of the lab.

Part 2: Accessing Your Windows VM Remotely Using RDP

Figure 2. The Remote Desktop Connection application on Windows.

In this section, we'll discover how to remotely connect to the Windows Server's desktop environment over the Internet from your computer.

  1. In the Overview tab for the Virtual Machine created in Part 1, look for the IP address or FQDN entry. This is the address you will use to connect later in this section. Write it down (Hover over the URL, and you'll see a Copy to clipboard icon).
  2. Look for the NAT protocol entry. This is the port number you'll use to connect. Write this down as well.
  3. If you're on a Windows PC: Open the Remote Desktop Connection application. It comes pre-installed with the OS.
  4. If you're on a Mac: Download the Microsoft Remote Desktop app from the Mac App Store here.
  5. Open the Remote Desktop application.
  6. In the Computer field, enter the IP address and port you wrote down from step 1 and 2. Use the following format: URL:portnumber (Example: ops705108.canadacentral.cloudapp.azure.com:62245)
  7. In the User name field, enter your Seneca username.
  8. Click the Connect button.
  9. Type the password you used when creating the VM in Part 1.
  10. Accept the certificate warning. (Click yes.)
  11. You should see a login progress screen, and a Windows Server desktop after a few moments.
  12. Congratulations! You've set up a Windows Server VM and logged in remotely.
  13. Open Notepad, and write My name is insertFullName, and I've completed the Windows Server VM investigation! Save the file to your VM's desktop, with the filename yourSenecaUsername.txt.
  14. Do not skip Part 3 at this stage! Otherwise, you'll be bleeding funds by leaving the VM running.

Part 3: Fully Stopping Your Windows Virtual Machine

Figure 3. Overview blade for the winserv VM. Notice its status.

This section is fairly simple. The one thing to never forget: Ensure your VM's status is set to Stopped (Deallocated).

  1. In the Overview blade of your Windows Server VM, click on the Stop button.
  2. A notification will appear in the top right of your browser window, confirming your action.
  3. Don't worry about going into the Windows OS and shutting down first. Azure sends a signal to the VM to shut down safely.
  4. If your VM status says stopped, but does not include the (Deallocated) text, then resources are still being held by the VM and we're still being charged. The stop button will still be available, so click it.

INVESTIGATION 2: Managing a CentOS Linux VM in Azure

In this investigation, we'll create, configure, and manage a CentOS Minimal Virtual Machine using Microsoft Azure. This is a command line only OS, so you'll be using SSH to remotely connect to the VM and issue basic commands. This VM will be used extensively in Lab 3.

Part 1: Creating A CentOS VM From An Image

Figure 4. Searching for a CentOS 7.8 Minimal image.

To create your CentOS VM, follow the steps from Investigation 1, Part 1, but with the following settings:

  1. Choose a base: CentOS-based 7.8
  2. Virtual machine name: yourSenecaUsername-lnx
  3. User name: yourSenecaUsername
  4. Authentication type: Password
  5. Use a saved secret: Unchecked
  6. Password: Same as your Windows Server VM
  7. Save as default password: Checked
  8. Virtual machine size: Standard_B1ms
  9. Click on the Advanced Settings tab.
  10. Under IP address, select Public.
  11. Click back to Basic Settings.
  12. Leave all other options as they are.
  13. Click Create!

When deployment is complete, click on the new VM in My virtual machines to verify its status and find the VM's address and SSH port. Write both down.

Part 2: Accessing Your CentOS VM Remotely Using SSH

Figure 5. The initial PuTTY screen on Windows.

We will be accessing our new Linux VM remotely using SSH, which is a command-line (CLI) only protocol. We'll be diving into CLI in more detail during our next lab.

Requirements: An SSH Client

  1. Windows: Download the PuTTY client here.
  2. macOS/Linux: Use the built-in Terminal application.

On Windows Using PuTTY:

  1. Open PuTTY
  2. In the Host Name (or IP address) field: Insert your address from Part 1. (Refer to Figure 7)
  3. In the Port field: 22
  4. Leave all other fields as their defaults.
  5. Click on the Open button.
  6. Click Yes on the security alert.
  7. In the login as: prompt, type your SenecaUsername, the press Enter.
  8. In the password field, type the password you gave when creating the VM. (You won't see anything as you type here; that's normal.)
  9. If login is successful, you should see a prompt like this: [cjohnson30@cjohnson30-lnx ~]$
  10. To prove you've completed this section, run the following: echo "My name is insertFullName, and I've completed the CentOS investigation." > ~/lab2.txt
  11. To quit, type exit.

On macOS/Linux Using Terminal:

  1. From the command line, type ssh yourSenecaUsername@address, press Enter.
  2. When prompted for a password, use the one you gave when you created the VM. (You won't see anything as you type here; that's normal.)
  3. If login is successful, you should see a prompt like this: [cjohnson30@cjohnson30-lnx ~]$
  4. To prove you've completed this section, run the following: echo "My name is insertFullName, and I've completed the CentOS VM investigation." > ~/lab2.txt
  5. To quit, type exit.

Part 3: Fully Stopping your CentOS VM

As with the Windows Server VM, fully deallocating your VM is essential to responsible usage.

  1. Click on the Stop button at the top of the VM's Overview blade.

That's it!

INVESTIGATION 3: Managing Your VMs Directly Through Azure's UI

In this quick investigation, we'll walk through how to directly manage virtual machines from the Azure Dashboard interface on a basic level. This is useful for starting up VMs, shutting them down when unresponsive, and deleting them when you're finished. (Warning: Do not delete either VM created in this lab!)

Part 1: Powering On A Virtual Machine

From the DevTest Labs blade:

  1. Click on the My virtual machines menu bar item.
  2. Click on the virtual machine you'd like to manage to move to its Overview blade.
  3. Click the Start menu button near the top.

Part 2: Powering Off A Virtual Machine

From the DevTest Labs blade:

  1. Click on the My virtual machines menu bar item.
  2. Click on the virtual machine you'd like to manage to move to its Overview blade.
  3. Click the Stop menu button near the top.

Remember the difference between the status Stopped and Stopped (deallocated)!

Part 3: Restarting A Virtual Machine

There are two methods to restarting a VM. Either within the OS, or through the Azure Dashboard.

Inside the OS:

  • Windows: Click on Start, and select Power Off.
  • Linux: From the command line (SSH), type sudo reboot

In either OS, you will be disconnected from your remote session. Wait a few minutes while the VM restarts, and reconnect.

From Azure Dashboard:

  1. Click on the Stop button from the VM's Overview blade.
  2. Wait until the VM's status has changed to Stopped (Deallocated).
  3. Click on the Start button at the top of the blade.

Part 4: Deleting A Virtual Machine

Deleting a Virtual Machine is useful when you no longer need it long-term, or if there's a catastrophic issue with the OS inside. Be careful! Any saved data inside the VM will be deleted as well!

  1. Navigate to the VM's Overview blade.
  2. If the VM status isn't Stopped (Deallocated), stop the VM. Wait until its status updates.
  3. Click on the Delete button at the top of the blade.

Part 5: A Note About Resource Usage

As mentioned during our lecture and throughout this lab, using resources responsibly is incredibly important. We pay for what we use. While we have a failsafe in place to stop all VMs at 2:00am EST daily, don't rely on it! Fully stop your VMs when you're not using them.

Your total allowed resource allocation has been restricted for this course. This means you can only have three VMs (or services) at a time. This includes Web Apps. If you have three already, you won't be able to add another until you delete one.

INVESTIGATION 4: Adding Your Professor As A User

Part of the advantage of cloud computing is the ability for anyone to access your resource (VM), as long as you allow it. As part of marking these labs, you need to create a second user within each OS.

Part 1: Adding a User in Windows Server 2016

Figure 6. The New User window. Use these values.
  1. Log in remotely using RDP.
  2. When the Server Manager window pops up, click on the Local Server menu item on the left.
  3. At the top right of this window, click Tools > Computer Management
  4. A new application called Computer Management appears. In the menu listing on the left, navigate to Computer Management > System Tools > Local Users and Groups > Users.
  5. Right-click in the middle of the window whitespace, and select New User from the context menu.
  6. In the New User window, fill it out according to Figure 6. Choose a temporary password that you will e-mail me.
  7. Click Create.
  8. Double-click the newly created user to open its profile.
  9. Select the Member Of tab, and click Add.
  10. Type Administrators in the new window, and click OK.
  11. Notify me by e-mail you've created that account, and include the temporary password.

Part 2: Adding a User in CentOS

  1. Log in remotely using SSH.
  2. Run the following command: sudo useradd -G wheel chris.johnson
  3. Run the following command to add a password: sudo passwd chris.johnson
  4. In the prompt, enter the temporary password that you will e-mail to me. You won't see any characters on screen, so take your time!
  5. To double-check you've entered the new password correctly, try switching to the user. If the password you enter doesn't work, re-run Step 3. su chris.johnson
  6. Notify me by e-mail you've created that account, and include the temporary password.

Lab Submission

Submit to Blackboard's Lab Submission section full-desktop screenshots (PNG/JPG) of the following:

  1. Your view of the OPS705 DevTest Labs Overview blade.
  2. The Azure Overview blade for your Windows Server VM.
  3. The Azure Overview blade for your CentOS VM.
  4. A full desktop screenshot of the text file created for your Windows VM, open in Notepad.
  5. A screenshot of your CentOS remote SSH session after running the command: cat ~/lab2.txt

E-mail your professor with account credentials for each VM. Do not send your own!

Your professor will review your VMs directly; the screenshots are a backup in case of catastrophic issues.

Your professor will not check your lab until the screenshots have been submitted.

Make sure to fully stop your VMs when you're done!