Windows Server 2008 Terminal Services Licensing

Let’s move on and talk briefly about Terminal Services Licensing (or TS Licensing) and also hear from more of our experts on the Terminal Services team at Microsoft. The job of TS Licensing is to simplify the task of managing Terminal Services Client Access Licenses (TS CALs). In other words, TS Licensing helps you ensure your TS clients are \ properly licensed and that you aren’t purchasing too many (or too few) licenses. TS Licensing manages clients that are unlicensed, temporarily licensed, and client-access (that is, permanent) licensed clients, and it manages licenses for both devices and users that are connecting to your terminal servers. The TS Licensing role service in Windows Server 2008 supports terminal servers that run both Windows Server 2008 and Windows Server 2003.

Device-based TS Licensing basically works like this: When a client tries to connect to a terminal server, the terminal server first determines whether the client requires a license (a TS CAL). If the client requires a license, the terminal server contacts your TS Licensing server (usually a separate machine, but for small environments this could also be the terminal server) and requests a license token, which it then forwards to the client. Meanwhile, the TS Licensing server keeps track of all the license tokens you’ve installed on it to ensure your environment complies with licensing requirements. Note that if a client requires a permanent license token, your TS Licensing server must be activated. (Nonactivated TS Licensing servers can issue only temporary tokens.)

A new feature of TS Licensing in Windows Server 2008 is its ability to track issuance of TS Per-User CALs. If your terminal server is configured to use Per-User licensing mode, any user attempting to connect to it must have a TS Per-User CAL. If the user doesn’t, the terminal server will contact the license server to obtain a CAL for her, and administrators can track the issuance of these CALs by using the TS Licensing management tool. Note that TS Per-User CAL tracking and reporting requires an Active Directory infrastructure.


Configuring Terminal Server License Server After Installation
TS Licensing Manager, the admin console for Terminal Server License Server, can now find configuration-related issues with a Terminal Server License Server. It displays the License Server configuration status under a new column, Configuration, in the list view. If there are some issues with the License Server configuration, the configuration status will be set to Review.

TS Licensing Manager also allows the admin to view the current License Server configuration settings in detail. The admin can choose Review Configuration from the right-click menu for a License Server, which opens the configuration dialog. The License Server configuration dialog displays the following information:

• TS License Server Database Path

• Current scope for the license server

• Membership of the Terminal Server License Server group at the Active Directory Domain Controller. During installation of the TS Licensing role on a domain machine, the setup tries to add the License Server in the Terminal Server License Server group at the Active Directory Domain controller, for which it requires domain administrator privileges. Membership to this group enables the License Server to track Per-User license usage.

• Status of the global policy License Server Security Group (TSLS). If this policy is enabled and the Terminal Server Computers group is not created, a warning message will be displayed. If the policy is disabled, no message/status will be displayed. Admins can take corrective actions if some License Server configuration issues are found. The License Server configuration dialog allows an administrator to take the following actions:

• Change the License Server scope.

• If the License Server scope is set to Forest and the License Server is not published in Active Directory, the License Server configuration dialog shows a warning message to the administrator and allows the administrator to publish the License Server in Active Directory.

• Add to the TSLS group in AD.

• If the License Server Security Group Group Policy is enabled and the Terminal Server Computers local group is not created, the License Server configuration dialog displays the warning message and allows the administrator to create the Terminal Server Computers local group on the License Server.

Source of Information : Introducing Windows Server 2008