A very important feature which has been implemented is the way in which bandwidth is managed for a terminal services session. It has been improved to provide low-bandwidth connections such as dial up with better performance by only transmitting a screen view of the remote computer, rather than the actual data itself.
To benefit from these new features, the terminal services client must be using RDP 5. The wizard will then start to install the required files and warn you that the machine will have to be restarted during the installation process. Close any open programs and click OK. The installation will continue for a few minutes before the machine is restarted. After the machine has booted and you logon, you are presented with a confirmation screen that states the computer is now a terminal server.
It is important to take note that a day evaluation period has been allocated for unlicensed clients. If you do not obtain a license within that period then terminal services clients will no longer be able to initiate a session. This is probably where the most changes have been made. To make your machine a terminal server license server you will have to install it separately.
Once you have installed this option your server will be listed in the terminal server licensing console. You will have to activate the server before it can start distributing licenses. Activation of the licensing server can be done via a direct connection to the internet, a web browser or over the telephone. The following is a screenshot of the terminal server licensing console demonstrating what you would have to do to start the activation process. This will bring up a wizard asking you to enter details and select options to suite your needs.
Follow the on screen instructions and press Finish when you are done. They can both be found in the administrative tools folder in control panel or on the start menu. When you select the server name you can choose to view and manage the Users, Sessions or Processes tab.
When sessions disappear without sufficient warning, users often reject the technology, unjustifiably. It is not the technology that creates the problem, but the organization or, in some cases, the communication involved. The Entering two strings in the tab Environment enables the configuration of an exclusive program that is started automatically upon user logon. An entry at the Program path and file name specifies the program desired. The Start in prompt determines the default directory allocated to the program.
When a user logs on, the program inside a full-screen session window is displayed instead of the normal desktop. When the user ends the program, the terminal server session is terminated, too. This leads to a basic form of environment where only one application is able to run. This option becomes active only if the Override settings from user profile and Remote Desktop Connection or from Terminal Services client option were activated.
This overwrites the corresponding setting in the terminal server-specific settings for local users and groups or users and computers in the Active Directory, including the client side as well. In this instance, too, the Terminal Services configuration takes precedence over the user or client-specific settings. In general, specifying a start program does not prevent the user from running another program.
Some desktop functions could still be misused behind the active application. For a strict single-application environment, the terminal server administrator needs to add further security settings. Problems that arise when starting the program over the network might indicate improper timing.
For example, the terminal server might be trying to start a program before a required network drive in a logon script is connected. The options in this tab are usually not modified in production environments. In general, a different technology is used to display individual applications. We will describe this technology in detail later in this book. The Remote Control tab allows a user session to be mirrored on another client.
This function is for administrative tasks, for example, help desk tasks. The remote control configuration allows you to use user-specific default settings, as well as to fully deactivate and configure the following settings:. Use remote control with default user settings means that the user settings of a local user or in the Active Directory are used to determine the following options.
Under Use remote control with the following settings in the dialog box, the administrator can determine if a user must approve of remote control when the administrator assumes control over a session. Additionally, it is possible to define whether the remote session can be viewed only under remote control, or if the administrator can also interact with the session by assuming control of the keyboard and the mouse.
Figure Configuration of remote control, where the user must give his or her permission, and the remote session can only be viewed. Labor-law restrictions in some countries prohibit monitoring users without their knowledge. It is therefore mandatory to obtain the user s permission. For this reason, remote control behavior in production environments is usually preconfigured under this tab and not under user settings.
Client settings allow an administrator access to several options related to the integration of client resources in the user session. Integrating these options supports the intuitive assumption by the user that he or she can continue to use local resources even though the application on the screen is physically running on a remote server.
Furthermore, this reduces the time it takes a user to become familiar with the system. For example, during a Terminal Services session, a user can issue the print command without first having to correctly allocate the appropriate resources.
In principle, the following options can be preconfigured for a connection protocol such as RDP 5. The first three options can also be defined through the user settings. Connect client drives at logon At logon, this option displays the local client drives as network drives in the corresponding terminal server session. This option is activated by default. Connect client printers at logon At logon, this option displays the local client printers as network printers in the corresponding terminal server session.
Default to main client printer This option determines whether a print job is forwarded automatically to the terminal server default printer or to the main client printer. This option is activated by default, which sends the print job automatically to the default client printer. Limit maximum color depth With this option you determine whether you want to limit the maximum color depth for a terminal server client using this connection.
If this option is active, you can select 8-bit, bit, bit, or bit. The default setting is preconfigured to bit. Printer connections will take the most time because numerous driver combinations can apply.
The other interfaces are a bit easier to integrate, although you can always disable them again as well. The following options can be disabled regardless of how you initiated the connection to the client drives or printers, that is, either via the options described earlier or via the user settings in the system tool Computer Management. Drive mapping If you check this box that is, you disable it , you will not be able to connect to the local client drives from a Terminal Services session. You can also override the Connect client drives at the logon option described earlier.
This option is disabled by default, that is, you will connect to the client drives at logon. Windows printer mapping If you check this box that is, you disable it , you will not be able to automatically connect to the client printers at logon. This option is disabled by default, that is, you will connect to the client printers at logon. LPT port mapping If you check this box that is, you disable it , the list of available printers will not include any client printer connected via the LPT port. This option is disabled by default, that is, you can manually integrate all printers that are connected via the LPT port on the client.
When you log on again, printers you mapped manually will be restored only if Windows printer mapping is enabled. COM port mapping If you check this box that is, you disable it , the list of available printers for Terminal Services sessions will not include any client printer connected via the COM port.
This option is disabled by default, that is, you can manually integrate all printers that are connected via the COM port on the client. Clipboard mapping If you check this box that is, you disable it , no data exchange between terminal server and terminal server client is possible via the clipboard.
This option is disabled by default, that is, the clipboard does allow data exchange. Audio mapping If you check this box that is, you disable it , it is not possible to transmit audio data streams from terminal server to terminal server client. This option is enabled by default, that is, system sounds and other audio signals of the user session will not be transmitted to the client. Other local client devices, such as serial bar code readers, cannot be contacted using RDP 5.
The network bandwidth required can be heavily influenced by the combination of client and server clipboards and the client printer mapping. For instance, when you copy a large graphic from an application running on the client and place it into an application running on the server, all the data on the clipboard must be transmitted via the network. Printer mapping is another critical issue, because a print job of several megabytes can put quite a load on a narrowband WAN connection for some time.
This, of course, affects the operating speed of the clients connected via remote access server RAS. The configuration options are very comprehensive. Therefore, it is easy to make mistakes. Please make sure that you determine in advance the options you need for productive operations in the target environment. On the next tab, you select one or more network adapters to allocate to the connection protocol.
Allocating a certain network adapter to a protocol can make a lot of sense in some environments. The tab provides an additional configuration option: the number of possible connections. That number can be unlimited or clearly limited to a certain quantity of simultaneous RDP connections over the network adapter selected. In this way, you can determine the number of network connections and thus the RDP bandwidth used for one network adapter.
The remaining bandwidth can then be reserved for other services. See Figure The maximum number of connections is not linked to the license configuration. Licenses are monitored using an independent tool. When it comes to user access, security plays a major role on a terminal server. For this reason, the Permissions tab provides access to the security settings of individual protocols. Permissions control what a user or a group may or may not do.
Only an administrator can modify the standard access types: Guest access, User Access, and Full Control. They are listed in Table 2. Access to Terminal Services or starting a Terminal Services session is usually regulated by Remote Desktop Users, a particular user group. New users who are to work on the terminal server are therefore added to this group. You should not modify this permission structure without a good reason to do so. Use the Advanced button to configure how you want to monitor the selected connection protocol in the Event Viewer.
Normally, this happens automatically during the installation of a terminal server. Furthermore, users who access Terminal Services must have a valid not blank password.
Fundamental changes to the runtime environment can be performed through the Terminal Services Configuration server settings. Delete temporary folders on exit Determines whether the directories for temporary files are deleted upon ending the session or not. This option is enabled by default to save resources on the terminal server.
Use temporary folders per session Each user has a personal directory for temporary files, or all users access one common temporary directory. By default, each user has a personal temporary folder. Licensing You can choose between licensing per device or per user.
The former requires a license for each client computer that connects to the terminal server. The latter requires a license for each user who connects to the terminal server. The license per device option is active by default.
Licensing per user is not currently supported. Active Desktop You can enable or disable use of the Active Desktop. The option to support Active Desktop is disabled by default. However, this prevents older applications from being executed for example, SAPGui 4. Therefore, the Relaxed Security permission compatibility setting offers reduced security control and provides full access for all users to the registry and system directories.
The Full Security option is enabled by default. Restrict each user to one session If this option is selected, there can be only one session per user.
This way, you can save resources on the terminal server and reconnection to existing sessions is easier. Each user is restricted to one session by default. Figure A The Manage Your Server dialog box displays a list of the roles that are presently assigned to the server. Figure D. Figure E The Sessions tab allows you to control what happens to disconnected sessions.
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