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Building a WSUS Approval Workflow Test Lab Using Hyper-V

#1
04-25-2021, 06:04 PM
Building a WSUS Approval Workflow Test Lab Using Hyper-V

Creating a WSUS approval workflow test lab is both a rewarding and challenging endeavor. It's a fantastic way to understand how WSUS operates, while also ensuring that your production environment remains stable. I started this journey by deciding to leverage Hyper-V, which provides a robust platform for spinning up test environments without cluttering my primary system.

First things first, before embarking on this journey, it’s important to have a solid Hyper-V installation. The Hyper-V role can be added through the Server Manager in Windows Server. I've always found it handy to run a PowerShell command to install Hyper-V quickly:


Install-WindowsFeature -Name Hyper-V -IncludeManagementTools -Restart


This quickly sets up Hyper-V. After the server reboots, the Hyper-V Manager icon will appear. You’ll be working a lot with this tool throughout the process.

Once you have Hyper-V up and running, the first step is to create virtual machines. I typically create a separate VM for the WSUS server. You should choose a suitable Windows Server version; I generally use Windows Server 2019 for new projects, as it has enhancements and optimizations that make it more efficient for WSUS tasks. When configuring a VM, allocate at least 2GB of RAM and 20GB of storage to start. Solid network connectivity also needs to be ensured, as WSUS requires it for communications with client machines, and to function properly, should have internet access as well.

After creating your first VM, the next step is to install the operating system. Once the OS installation is complete, I recommend setting up the Windows Server Update Services (WSUS) role. This can be handled through the Server Manager, under the "Add roles and features" wizard. During the setup, the database selection comes up, and while it’s possible to select the Windows Internal Database, it’s more convenient to use SQL Server if you have it. Using SQL Server Express is a good choice for small labs. Installing the role takes a few minutes, and the configuration wizard that launches afterwards will help set the initial settings.

During the WSUS configuration, you'll get to select your update source. If this is for a test environment, you might want to grab updates from Microsoft Update to keep things straightforward. In a production scenario, you would typically target a local update server or an upstream WSUS for downloads.

I usually configure the synchronization schedule to be automatic, once a day, so the system updates itself regularly. This makes for an efficient test environment, as it mimics real-world conditions. After the initial setup, I find it handy to trigger an immediate synchronization to ensure the server has the latest updates available. This can be done with a PowerShell command:


Invoke-WsusServerSync


Once WSUS is set up, it's time to create client machines to test the approval workflow. I’ve found it helpful to create at least two to three VMs running Windows 10 or a similar client OS. Each client will require proper network settings to communicate with the WSUS server. You’ll need to adjust the Windows Update settings on these clients to point towards your WSUS server. This can be done through Group Policy for an entire domain or via local policies.

Editing the local policy is straightforward; follow these steps: Go to 'Computer Configuration -> Administrative Templates -> Windows Components -> Windows Update', and enable the setting for 'Specify intranet Microsoft update service location'. Here, you’ll need to set the URLs to your WSUS server.


http://<your-wsus-server>:8530


This adjustment connects your client VMs to your WSUS instance, allowing them to receive updates. Don’t forget to also allow the clients to communicate with WSUS using the specified ports.

After confirming the client configuration, I prefer to run the command 'gpupdate /force' on the client machines to force an immediate update of the group policies. Once that’s completed, running the 'Get-WUList' command can help confirm that the clients can now see the updates approved on the WSUS server. This functionality is critical for your test lab, as it verifies that the client machines are properly communicating with the WSUS server.

At this point, it’s essential to focus on the approval workflow you want to test. I generally set up three categories of updates: Critical, Security, and Feature updates. During the beginning of any testing phase, I pluck some updates from the WSUS console and manually approve them, first as a straightforward exercise. You can approve updates for all clients, or target the specific ones that need them, which you can do through the WSUS management console.

You can also utilize the 'Invoke-WsusApprove' command in PowerShell to streamline this process across multiple updates.


Invoke-WsusApprove -Update $(Get-WsusUpdate -Approval Unapproved -Status Any) -Approval Approved -TargetGroupName "All Computers"


Playing around with these commands will help establish a better grasp of how each update affects the client machines.

Now, testing the automatic approval feature is a good next step. In WSUS, you can configure Automatic Approval Rules based on the classifications and products you select. For example, you might set a rule that automatically approves all Security Updates for your Windows 10 clients. This makes it easier to implement effective patch management without manual intervention. Setting rules saves a lot of time, especially when managing large environments.

I typically run my test scenarios in a staggered fashion, approving certain updates over a week and watching how clients respond, noting their statuses and behaviors in the WSUS console. Observing the logs can reveal a lot about how the updates are being received. Checking '%ProgramFiles%\Update Services\LogFiles\' can give you information about what's happening behind the scenes. Understanding the log files can help troubleshoot issues when client machines fail to report back to the WSUS server.

Consider incorporating the WSUS diagnostics tool, which presents reports and insights about WSUS synchronization, client reporting, and update approval statuses. Tools like these enhance your ability to manage updates effectively and ensure a smooth workflow. The coding options available within PowerShell are notably beneficial for tailoring rollout processes specifically for different groups within your organization.

When it comes to update approvals, using PowerShell scripting can effectively automate processes, allowing for updates to be approved on a defined schedule. I often find myself creating scripts that run during off-hours to ensure minimal disruption during business hours. Creating a balance between updates and the organization's operations is key.

To create a more robust testing environment, I'll sometimes bring in other services and components that can interact with WSUS. For instance, setting up a SCCM (System Center Configuration Manager) in the lab can augment the capabilities of WSUS, giving you additional layers of approval workflows, patch management, and reporting.

After you’ve successfully run your approval workflows and tested various scenarios, it might be valuable to consider how your test lab can evolve into a valuable asset for your production environment. Documenting your findings of how different updates impacted client machines, noting issues that arose, and how they were resolved can help build a solid foundational knowledge base for future patch management decisions.

In production, I strongly recommend incorporating comprehensive backup solutions such as BackupChain Hyper-V Backup for your Hyper-V environment. BackupChain offers extensive capabilities in automating Hyper-V backups, allowing a safety net for any changes made during your WSUS testing. It’s noted for its ability to perform consistent incremental backups and offers file-level restore options. Such features ensure that your lab is as safe as your production environment.

BackupChain can also operate in multiple environments while maintaining a single central backup console, providing ease of administration. Features like automatic snapshot management make it easy to revert systems to previous states when problems arise, reducing downtime effectively.

Testing a WSUS approval workflow in a test lab run on Hyper-V can be an enlightening journey. Setting up your environments, configuring clients, and approving updates all provide real-world insights into how WSUS functions. Each challenge faced offers an opportunity to learn something new, whether it’s through scripting, troubleshooting logs, or refining approval processes.

As you explore this area of IT management, maintaining thorough documentation and ensuring proper testing protocols will go a long way in creating a robust WSUS management workflow that translates to practice within your own organization.



Introducing BackupChain Hyper-V Backup

BackupChain Hyper-V Backup offers a comprehensive backup solution designed specifically for Hyper-V environments. Built-in features include incremental backup types that optimize storage and time efficiency, meaning you won’t need to allocate excessive resources for regular backups. Instant VM recovery allows for quick restoration, ensuring that critical applications can be back online shortly after an issue arises. Incremental backup enables organizations to perform frequent backups without needing significant network resources or storage overhead.

With the ability to backup multiple Hyper-V environments using a single management console, BackupChain provides a reliable way to maintain data integrity and availability. Automation options are embedded, making scheduling backups a seamless experience.

Philip@BackupChain
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Building a WSUS Approval Workflow Test Lab Using Hyper-V - by Philip@BackupChain - 04-25-2021, 06:04 PM

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