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Windows Server 20003, Thin Clients terminal services, SQL

Posted on 2007-10-18
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We are thinking to upgrade our business environment to a Windows Server 2003 and use NCompting thin clients to connect.  We have an application that uses a SQL database and the program vendor is stating they will not support the program running in a terminal environment.  They state that since terminals are actualyl running from the server, that there is physically one computer accessing the SQL database at one time which will cause double entries.

Can someone please confirm/deny the following:

Install of Windows Server 2003
Use nComputing thin clients to connect (that part works fine we tried it)
Running a reservation system that uses SQL
If multiple thin clients are logged in they can function normal or they will create double bookings
Wouldnt the terminal session create seperate sessions with SQL just like physical computers?

thanks for the info.
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Question by:compcreate
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Cláudio Rodrigues earned 150 total points
ID: 20104643
Yes and no. It really depends on how the backend identifies the frontend. Some 'not-well-written' applications identify the frontend connection by IP address. In this case as you can imagine, with 20 thin clients connected to the server and from there to the backend, the backend sees 20 connections coming from the same IP address and that may cause issues on the software.
Again this is really application dependent. Some well written ones will have other mechanisms in place to guarantee/identify each unique session (i.e. using a SQL based logon, using SESSIONID - if retrieved using the WTSAPI, etc).
The key thing here in your case is to test. Deploy the solution in a test environment and see if the backend has no issues with the frontend being on a TS.

Cheers,

Cláudio Rodrigues
Microsoft MVP
Windows Server - Terminal Services
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