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Configuring Dedicated Redirectors (optional)

Updated: March 15, 2010

Applies To: Windows Server 2008

If you use Domain Name System (DNS) round robin as the front-end load balancer, when you register the IP address of each terminal server in the farm to a single terminal server farm name in DNS, incoming Terminal Services clients try to connect to the first IP address for the farm name that is returned by DNS. The terminal server that receives this initial connection request acts as the redirector.

To increase session redirection performance in a large terminal server farm, you can configure terminal servers to be dedicated redirectors. These servers process incoming requests, but they do not accept user sessions.

To configure dedicated redirectors, you must do the following:

  1. Create DNS round robin entries for the terminal servers that you want to use as dedicated redirectors. When you do so, you must map the IP address of each terminal server that you want to use as a dedicated redirector to the terminal server farm name in DNS. (The farm name is the virtual name that clients use to connect to the terminal server farm.) The farm name must not match an existing server name in Active Directory Domain Services (AD DS).

    noteNote
    Only the dedicated redirectors should have host resource records in DNS that map to the terminal server farm name.

  2. Configure the terminal servers that you want to use as dedicated redirectors to deny new user logon requests. For more information about how to deny new user logon requests, see Deny Logon Requests to a Terminal Server.

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