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Appendix A
Configuring Session Services
Before you use the information in this section to configure your ICA and RDP session
services, be sure you understand and use the following guidelines:
•
•
•
General Guidelines - Be aware of the following:
•
The Thin-client session services are made available by servers hosting Citrix ICA
and Microsoft RDP software products.
•
A browser must be available through one of the session services to access any
on-line help documentation for users.
•
There can be more connections than desktop space to display them.
•
Connections can be defined in persistent memory (with a statement reading
enablelocal=yes in the wnos.ini file). These connections can be displayed as
desktop icons only in Stand-alone mode with a Non-privileged user.
•
Only the connections defined in an INI file and containing an icon= clause will be
displayed on the desktop (assuming there is adequate desktop space).
•
Connections can be displayed on the desktop without requiring a sign-on (when
you define these connections in a wnos.ini file or when the wnos.ini file does not
contain a SignOn=yes statement).
ICA Guidelines - Independent Computing Architecture (ICA) is a three-tier,
server-based computing technology that separates the logic of an application from its
user interface. The ICA client software installed on the thin client allows the user to
interact with the application GUI, while all of the application processes are executed on
the server. ICA connects to NT TSE, Windows Server 2003, or Windows Server 2008
Server hosts that have a Citrix MetaFrame server, Citrix Presentation server, or CDS
installed. Load balancing is included. ICA browsing or DNS can be used to resolve the
server name. For information on configuring ICA, refer to "Configuring ICA Session
Services." For detailed information on the supported parameters (in the INI files) that
you can use for ICA connections, refer to the Reference Guide: Wyse ThinOS
Files.
Tip
The ICA server must be licensed from Citrix Systems, Inc. You must
purchase enough client licenses to support the total concurrent thin client
load placed on the Citrix server farm. A failure to connect when all client
seats are occupied does not represent a failure of Wyse equipment. The ICA
client software is installed on the thin client.
RDP Guidelines - Remote Desktop Protocol (RDP), like ICA, is a network protocol that
allows a thin client to communicate with the Terminal Server or Windows 2003/2008
Server with Terminal Services over the network. This protocol is based on the T.120
protocol suite, an international standard multi-channel conferencing protocol. The thin
client supports both RDP version 4.x and version 5.x. For information on configuring
RDP, refer to "Configuring RDP Session Services." For detailed information on the
supported parameters (in the INI files) that you can use for RDP connections, refer to
the Reference Guide: Wyse ThinOS
TM
INI Files.
TM
INI
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