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One possible solution to prevent domain users from saving executable files in a share named \SRVl\Data is to use file screening on the file server. File screening allows you to block certain files from being saved based on their file name extension. Here are the steps to configure file screening:

• On the file server, open File Server Resource Manager from the Administrative Tools menu.
• In the left pane, expand File Screening Management and click on File Groups.
• Right-click on File Groups and select Create File Group.
• In the File Group Properties dialog box, enter a name for the file group, such as Executable Files.
• In the Files to include box, enter the file name extensions that you want to block, such as .exe, .bat, .cmd, .com, .msi, .scr. You can use wildcards to specify multiple extensions, such as *.exe.
• Click OK to create the file group.
• In the left pane, click on File Screen Templates.
• Right-click on File Screen Templates and select Create File Screen Template.
• In the File Screen Template Properties dialog box, enter a name for the template, such as Block Executable Files.
• On the Settings tab, select the option Active screening: Do not allow users to save unauthorized files.
• On the File Groups tab, check the box next to the file group that you created, such as Executable Files.
• On the Notification tab, you can configure how to notify users and administrators when a file screening event occurs, such as sending an email, logging an event, or running a command or script. You can also customize the message that users see when they try to save a blocked file.
• Click OK to create the file screen template.
• In the left pane, click on File Screens.
• Right-click on File Screens and select Create File Screen.
• In the Create File Screen dialog box, enter the path of the folder that you want to apply the file screening to, such as \SRVl\Data.
• Select the option Derive properties from this file screen template (recommended) and choose the template that you created, such as Block Executable Files.
• Click Create to create the file screen.

Now, domain users will not be able to save executable files in the share named \SRVl\Data. They will be able to save other files to the share.

One possible solution to monitor the security configuration of DC1 by using Microsoft Defender for Cloud is to use the Guest Configuration feature. Guest Configuration is a service that audits settings inside Linux and Windows virtual machines (VMs) to assess their compliance with your organization’s security policies. You can use Guest Configuration to monitor the security baseline settings for Windows Server in the Microsoft Defender for Cloud portal by following these steps:

• On DC1, open a web browser and go to the folder named \dc1.contoso.com\install. Download the Guest Configuration extension file (GuestConfiguration.msi) and save it to a local folder, such as C:\Temp.
• Run the Guest Configuration extension file and follow the installation wizard. You can choose to install the extension for all users or only for the current user. For more information on how to install the Guest Configuration extension, see Install the Guest Configuration extension.
• After the installation is complete, sign in to the Microsoft Defender for Cloud portal (2).
• In the left pane, select Security Center and then Recommendations.
• In the recommendations list, find and select Vulnerabilities in security configuration on your Windows machines should be remediated (powered by Guest Configuration).
• In the Remediate Security Configurations page, you can see the compliance status of your Windows VMs, including DC1, based on the Azure Compute Benchmark. The Azure Compute Benchmark is a set of rules that define the desired configuration state of your VMs. You can also see the number of failed, passed, and skipped rules for each VM. For more information on the Azure Compute Benchmark, see Microsoft cloud security benchmark: Azure compute benchmark is now available.
• To view the details of the security configuration of DC1, click on the VM name and then select View details. You can see the list of rules that apply to DC1 and their compliance status. You can also see the severity, description, and remediation steps for each rule. For example, you can see if DC1 has the latest security updates installed, if the firewall is enabled, if the password policy is enforced, and so on.
• To monitor the security configuration of DC1 over time, you can use the Compliance over time chart, which shows the trend of compliance status for DC1 in the past 30 days. You can also use the Compliance breakdown chart, which shows the distribution of compliance status for DC1 by rule severity.

By using Guest Configuration, you can monitor the security configuration of DC1 by using Microsoft Defender for Cloud and ensure that it meets your organization’s security standards. You can also use Guest Configuration to monitor the security configuration of other Windows and Linux VMs in your Azure environment.

One possible solution to ensure that the Azure file share named share1 can sync to on-premises servers is to use Azure File Sync. Azure File Sync allows you to centralize your file shares in Azure Files without giving up the flexibility, performance, and compatibility of an on-premises file server. It does this by transforming your Windows Servers into a quick cache of your Azure file share. You can use any protocol available on Windows Server to access your data locally (including SMB, NFS, and FTPS) and you can have as many caches as you need across the world1.

Here are the steps to configure Azure File Sync for the Azure file share named share1 and the source files located in a folder named \dc1.contoso.com\install:

• On the Azure portal, create a Storage Sync Service in the same region as your storage account that contains the Azure file share named share1. For more information on how to create a Storage Sync Service, see How to deploy Azure File Sync.
• On the on-premises server that hosts the folder named \dc1.contoso.com\install, install the Azure File Sync agent. For more information on how to install the Azure File Sync agent, see Install the Azure File Sync agent.
• On the on-premises server, register the server with the Storage Sync Service that you created in the first step. For more information on how to register a server with a Storage Sync Service, see Register/unregister a server with Storage Sync Service.
• On the Azure portal, create a sync group that defines the sync topology for a set of files. In the sync group, select the Azure file share named share1 as the cloud endpoint and the folder named \dc1.contoso.com\install as the server endpoint. For more information on how to create a sync group, see Create a sync group and a cloud endpoint and Create a server endpoint.
• Wait for the initial sync to complete. You can monitor the sync progress on the Azure portal or on the on-premises server. For more information on how to monitor sync progress, see [Monitor sync progress].

Once the initial sync is complete, you can add more on-premises servers to the same sync group to sync and cache the content locally. You can also enable cloud tiering to optimize the storage space on the on-premises servers by tiering infrequently accessed or older files to Azure Files.

One possible solution to configure Hyper-V to ensure that running virtual machines can be moved between SRV1 and SRV2 without downtime is to use Live Migration. Live Migration is a feature of Hyper-V that allows you to move a running virtual machine from one host to another without any noticeable interruption of service. To set up Live Migration between SRV1 and SRV2, you need to perform the following steps:

• On both SRV1 and SRV2, open Hyper-V Manager from the Administrative Tools menu or by typing virtmgmt.msc in the Run box.
• In the left pane, right-click on the name of the server and select Hyper-V Settings.
• In the Hyper-V Settings dialog box, select Live Migrations in the navigation pane.
• Check the box Enable incoming and outgoing live migrations.
• Under Authentication protocol, select the method that you want to use to authenticate the live migration traffic between the servers. You can choose either Kerberos or CredSSP. Kerberos does not require you to sign in to the source server before starting a live migration, but it requires you to configure constrained delegation on the domain controller. CredSSP does not require you to configure constrained delegation, but it requires you to sign in to the source server through a local console session, a Remote Desktop session, or a remote Windows PowerShell session. For more information on how to configure constrained delegation, see Configure constrained delegation.
• Under Performance options, select the option that best suits your network configuration and performance requirements. You can choose either TCP/IP or Compression or SMB. TCP/IP uses a single TCP connection for the live migration traffic. Compression uses multiple TCP connections and compresses the live migration traffic to reduce the migration time and network bandwidth usage. SMB uses the Server Message Block (SMB) 3.0 protocol and can leverage SMB features such as SMB Multichannel and SMB Direct. For more information on how to choose the best performance option, see Choose a live migration performance option.
• Under Advanced Features, you can optionally enable the Use any available network for live migration option, which allows Hyper-V to use any available network adapter on the source and destination servers for live migration. If you do not enable this option, you need to specify one or more network adapters to be used for live migration by clicking on the Add button and selecting the network adapter from the list. You can also change the order of preference by using the Move Up and Move Down buttons.
• Click OK to apply the settings.

Now, you have configured Hyper-V to enable live migration between SRV1 and SRV2. You can use Hyper-V Manager or Windows PowerShell to initiate a live migration of a running virtual machine from one server to another.

To configure the domain to support the creation of gMSAs, you need to perform the following steps:

• On a domain controller or a computer that has the Remote Server Administration Tools (RSAT) installed, open PowerShell as an administrator and run the following command to install the Active Directory module:

Install-WindowsFeature -Name RSAT-AD-PowerShell

• Run the following command to create a Key Distribution Service (KDS) root key, which is required for generating passwords for gMSAs. You only need to do this once per domain:

Add-KdsRootKey -EffectiveImmediately

• Wait for at least 10 hours for the KDS root key to replicate to all domain controllers in the domain. Alternatively, you can use the -EffectiveTime parameter to specify a past date and time for the KDS root key, but this is not recommended for security reasons. For more information, see Add-KdsRootKey.
• After the KDS root key is replicated, you can create and configure gMSAs using the New-ADServiceAccount and Set-ADServiceAccount cmdlets. For more information, see Create a gMSA and Configure a gMSA.