WorkSpaces Pools Active Directory Administration

Setting up and using Active Directory with WorkSpaces Pools involves the following administrative tasks.

Granting Permissions to Create and Manage Active Directory Computer Objects

To allow WorkSpaces Pools to perform Active Directory computer object operations, you need an account with sufficient permissions. As a best practice, use an account that has only the minimum privileges necessary. The minimum Active Directory organizational unit (OU) permissions are as follows:

• Create Computer Object

• Change Password

• Reset Password

• Write Description

Before setting up permissions, you'll need to do the following first:

• Obtain access to a computer or an EC2 instance that is joined to your domain.

• Install the Active Directory User and Computers MMC snap-in. For more information, see Installing or Removing Remote Server Administration Tools for Windows 7 in the Microsoft documentation.

• Log in as a domain user with appropriate permissions to modify the OU security settings.

• Create or identify the user, service account, or group for which to delegate permissions.

To set up minimum permissions

1. Open Active Directory Users and Computers in your domain or on your domain controller.

2. In the left navigation pane, select the first OU on which to provide domain join privileges, open the context (right-click) menu , and then choose Delegate Control.

3. On the Delegation of Control Wizard page, choose Next, Add.

4. For Select Users, Computers, or Groups, select the pre-created user, service account, or group, and then choose OK.

5. On the Tasks to Delegate page, choose Create a custom task to delegate, and then choose Next.

6. Choose Only the following objects in the folder, Computer objects.

7. Choose Create selected objects in this folder, Next.

8. For Permissions, choose Read, Write, Change Password, Reset Password, Next.

9. On the Completing the Delegation of Control Wizard page, verify the information and choose Finish.

10. Repeat steps 2-9 for any additional OUs that require these permissions.

If you delegated permissions to a group, create a user or service account with a strong password and add that account to the group. This account will then have sufficient privileges to connect your WorkSpaces to the directory. Use this account when creating your WorkSpaces Pools directory configuration.

Finding the Organizational Unit Distinguished Name

When you register your Active Directory domain with WorkSpaces Pools, you must provide an organizational unit (OU) distinguished name. Create an OU for this purpose. The default Computers container is not an OU and cannot be used by WorkSpaces Pools. The following procedure shows how to obtain this name.

Note

The distinguished name must start with OU= or it cannot be used for computer objects.

Before you complete this procedure, you'll need to do the following first:

• Obtain access to a computer or an EC2 instance that is joined to your domain.

• Install the Active Directory User and Computers MMC snap-in. For more information, see Installing or Removing Remote Server Administration Tools for Windows 7 in the Microsoft documentation.

• Log in as a domain user with appropriate permissions to read the OU security properties.

To find the distinguished name of an OU

1. Open Active Directory Users and Computers in your domain or on your domain controller.

2. Under View, ensure that Advanced Features is enabled.

3. In the left navigation pane, select the first OU to use for WorkSpaces computer objects, open the context (right-click) menu, and then choose Properties.

4. Choose Attribute Editor.

5. Under Attributes, for distinguishedName, choose View.

6. For Value, select the distinguished name, open the context menu, and then choose Copy.

Granting Local Administrator Rights on custom images

By default, Active Directory domain users do not have local administrator rights on images. You can grant these rights by using Group Policy preferences in your directory, or manually, by using the local administrator account on an image. Granting local administrator rights to a domain user allows that user to install applications on and create custom images in WorkSpaces Pools.

Contents

• Using Group Policy preferences
• Using the local Administrators group on the WorkSpace to create images

Using Group Policy preferences

You can use Group Policy preferences to grant local administrator rights to Active Directory users or groups and to all computer objects in the specified OU. The Active Directory users or groups to which you want to grant local administrator permissions must already exist. To use Group Policy preferences, you'll need to do the following first:

• Obtain access to a computer or an EC2 instance that is joined to your domain.

• Install the Group Policy Management Console (GPMC) MMC snap-in. For more information, see Installing or Removing Remote Server Administration Tools for Windows 7 in the Microsoft documentation.

• Log in as a domain user with permissions to create Group Policy objects (GPOs). Link GPOs to the appropriate OUs.

To use Group Policy preferences to grant local administrator permissions

1. In your directory or on a domain controller, open the command prompt as an administrator, type gpmc.msc, and then press ENTER.

2. In the left console tree, select the OU where you will create a new GPO or use an existing GPO, and then do either of the following:

   • Create a new GPO by opening the context (right-click) menu and choosing Create a GPO in this domain, Link it here. For Name, provide a descriptive name for this GPO.

   • Select an existing GPO.

3. Open the context menu for the GPO, and choose Edit.

4. In the console tree, choose Computer Configuration, Preferences, Windows Settings, Control Panel Settings, and Local Users and Groups.

5. Select Local Users and Groups selected, open the context menu , and choose New, Local Group.

6. For Action, choose Update.

7. For Group name, choose Administrators (built-in).

8. Under Members, choose Add… and specify the Active Directory users or groups to which to assign local administrator rights on the streaming instance. For Action, choose Add to this group, and choose OK.

9. To apply this GPO to other OUs, select the additional OU, open the context menu and choose Link an Existing GPO.

10. Using the new or existing GPO name that you specified in step 2, scroll to find the GPO, and then choose OK.

11. Repeat steps 9 and 10 for additional OUs that should have this preference.

12. Choose OK to close the New Local Group Properties dialog box.

13. Choose OK again to close the GPMC.

To apply the new preference to the GPO, you must stop and restart any running image builders or fleets. The Active Directory users and groups that you specified in step 8 are automatically granted local administrator rights on the image builders and fleets in the OU to which the GPO is linked.

Using the local Administrators group on the WorkSpace to create images

To grant Active Directory users or groups local administrator rights on an image, you can manually add these users or groups to the local Administrators group on the image.

The Active Directory users or groups to which to grant local administrator rights must already exist.

1. Connect to the WorkSpace you use to build images. The WorkSpace must be running and domain-joined.

2. Choose Start, Administrative Tools, and then double-click Computer Management.

3. In the left navigation pane, choose Local Users and Groups and open the Groups folder.

4. Open the Administrators group and choose Add....

5. Select all Active Directory users or groups to which to assign local administrator rights and choose OK. Choose OK again to close the Administrator Properties dialog box.

6. Close Computer Management.

7. To log in as an Active Directory user and test whether that user has local administrator rights on the WorkSpaces, choose Admin Commands, Switch user, and then enter the credentials of the relevant user.

Locking the Streaming Session When the User is Idle

WorkSpaces Pools relies on a setting that you configure in the GPMC to lock the streaming session after your user is idle for specified amount of time. To use the GPMC, you'll need to do the following first:

• Obtain access to a computer or an EC2 instance that is joined to your domain.

• Install the GPMC. For more information, see Installing or Removing Remote Server Administration Tools for Windows 7 in the Microsoft documentation.

• Log in as a domain user with permissions to create GPOs. Link GPOs to the appropriate OUs.

To automatically lock the streaming instance when your user is idle

1. In your directory or on a domain controller, open the command prompt as an administrator, type gpmc.msc, and then press ENTER.

2. In the left console tree, select the OU where you will create a new GPO or use an existing GPO, and then do either of the following:

   • Create a new GPO by opening the context (right-click) menu and choosing Create a GPO in this domain, Link it here. For Name, provide a descriptive name for this GPO.

   • Select an existing GPO.

3. Open the context menu for the GPO, and choose Edit.

4. Under User Configuration, expand Policies, Administrative Templates, Control Panel, and then choose Personalization.

5. Double-click Enable screen saver.

6. In the Enable screen saver policy setting, choose Enabled.

7. Choose Apply, and then choose OK.

8. Double-click Force specific screen saver.

9. In the Force specific screen saver policy setting, choose Enabled.

10. Under Screen saver executable name, enter scrnsave.scr. When this setting is enabled, the system displays a black screen saver on the user's desktop.

11. Choose Apply, and then choose OK.

12. Double-click Password protect the screen saver.

13. In the Password protect the screen saver policy setting, choose Enabled.

14. Choose Apply, and then choose OK.

15. Double-click Screen saver timeout.

16. In the Screen saver timeout policy setting, choose Enabled.

17. For Seconds, specify the length of time that users must be idle before the screen saver is applied. To set the idle time to 10 minutes, specify 600 seconds.

18. Choose Apply, and then choose OK.

19. In the console tree, under User Configuration, expand Policies, Administrative Templates, System, and then choose Ctrl+Alt+Del Options.

20. Double-click Remove Lock Computer.

21. In the Remove Lock Computer policy setting, choose Disabled.

22. Choose Apply, and then choose OK.

Configuring WorkSpaces Pools to Use Domain Trusts

WorkSpaces Pools supports Active Directory domain environments where network resources such as file servers, applications, and computer objects reside in one domain, and the user objects reside in another. The domain service account used for computer object operations does not need to be in the same domain as the WorkSpaces Pools computer objects.

When creating the directory configuration, specify a service account that has the appropriate permissions to manage computer objects in the Active Directory domain where the file servers, applications, computer objects and other network resources reside.

Your end user Active Directory accounts must have the "Allowed to Authenticate" permissions for the following:

• WorkSpaces Pools computer objects

• Domain controllers for the domain

For more information, see Granting Permissions to Create and Manage Active Directory Computer Objects.