Configuring Citrix MetaFrame for Windows 2000 Terminal Services

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If users call and report difficulty connecting to your server, ascertain exactly what symptoms are being displayed. Published applications are dependent on the UDP port for browsing, so ask the user to try connecting directly to a server. If the user can do a direct connect, then you should investigate:

■    Ensure the security group has not closed or otherwise restricted the ICA UDP traffic from crossing the firewall.

■    If the firewall is performing address translation, verify that the user’s client is configured to use the alternate address.

■    Verify that the server has been configured to provide its alternate (public) address using the altaddr.exe command.

Performance Tuning

As I stated before, Terminal Services are not necessarily ready for “out-of-the-box” production. There are several settings in Terminal Services that can be tweaked to enhance performance. These settings range from the simplicity of turning off the blink of the cursor to reduce transmitted screen updates, to the complexity of changing the TCP/IP buffer size to optimize WAN/Internet performance. I will list some of my favorite tweaks to improve Terminal Services performance.


Please note that before editing the Windows 2000 registry, you should have a backup of the registry available to use if you need to restore it. Some of the lines in this section have been wrapped for readability.

Solid Cursor Setting the cursor to solid is especially effective in low-bandwidth situations. A blinking cursor sends a few bytes of data every time it blinks, so disabling the blinks saves precious bandwidth.

«HKEY_USERS/.default/Control Panel/Desktop»

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