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Terminal services or Citrix?

Posted on 2006-11-02
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I have a client interested in using an application server across the interenet. The connection would have to be secure. They will be running windows 2003 server. I am trying to decide on wether to use terminal services or Citrix. I have worked with terminal services before, but I have never worked with Citrix. Some of my concerns are bandwidth, Lag, ease of use, expandability, and Maintenance. At any given time there can be as many as 150 users logged in remotely. Can anyone inform me on what would be the better choice and why.
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Question by:zwig2002
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pgm554 earned 250 total points
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TS is basically a licensed version of Citrix.
Citrix Presentation server is the high end product with a lot of bells and whistles.
TS is a more basic program.

http://www.opssys.com/instantkb/article.aspx?id=10239
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by:zwig2002
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How about the cost factor. Which would be less expensive?
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by:pgm554
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Citrix is more expensive.

But it really depends on what you want to do, if the higher end product is what you need.
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by:kane77573
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Terminal services would be less expensive, but with citrix you get alot more functionality.
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What would the bandwidth recommendation be for 150 users all logged on at the same time? What type of connection would you recommend?

I can just use the terminal services in Windows 2003 sbs and just add licenses correct? What would the server Specs have to be in order to support 150 connections?

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by:kane77573
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depends on how you specify whats mapped and whats no mapped along with display effects.

Product Information
System Requirements for Windows Small Business Server 2003 R2
Published: July 11, 2006
Review the system requirements table on this page to determine the minimum and recommended system requirements needed to run Windows Small Business Server 2003 R2, Standard Edition and Premium Edition.

Windows Small Business Server 2003 R2 supports a maximum of 75 users or devices. The computer running Windows Small Business Server 2003 R2 should be in the Intel Pentium/Celeron family or the AMD K6/Athlon/Duron family or have a compatible processor. Both editions support up to two CPUs on one server.

Note: To ensure that your applications and hardware are ready for Microsoft Windows Server 2003, visit the Windows Server 2003 Web site.

Id setup 2 terminal SBS and distrube 75 specfic logins to each.
Do you have dsl cable, t1 fracs?
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by:zwig2002
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I know the specs for the operating system, I just want to know how much memory and cpu speed will be needed to support 150 terminal service users. Can they all be on one 2003 server?

We currently have a cable connection. What should we upgrade to in order to support 150 TS users?
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Yeah,on regular 32 bit 2003 ,I would go 2 boxes .

If you go 64 bit Windows 2003 server,then  you might be able to run everything off of one box.

You start to run into memory issues with 32 bit NOS and term server(just like on Exchange and SQL).
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by:zwig2002
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How about the bandwidth issue? The program is not graphic intensive.
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by:pgm554
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Forget SBS !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

It will not run TS.period!

You will need a regular or enterprise version of W2K3.
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by:kane77573
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Id base it on how much memory each user would typically consume during a session?
So if they run an app that consumes 20 mb's per total rdp session 20MB x's 150 or 75 =total physcial ram you need
Check that first
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by:pgm554
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If you want to run everything off of one box,then I would go Opteron 64 bit or Xeon 64 bit ,dual core,along with W2K3 64 bit and Citrix 64 bit TS.

Should handle 150 users with no sweat.

http://www.citrix.com/English/ps2/products/feature.asp?contentID=22341

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by:zwig2002
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No one has answered my question regarding the bandwidth issue. What type of Connection and what speed would I need?
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by:kane77573
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IT DEPENDS ON HOW MUCH DATA IS BEING TRANSFERED BACK AND FORTH
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by:pgm554
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What type of cable connection?
Symmetric or asymetric?

You will need at least a T1.

TS is very low bandwidth intensive.

If all you are doing is TS,then a T1 could be sufficent.

But if you are going to use the bandwidth for other things like web services, FTP, Email,and  HTTP,then a bigger pipe is in order.

You need about 15 to 20k per user bandwidth.

So you will need at least 300K theorhetically.

Real world about double.
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by:pgm554
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Oops ,forgot to carry something.

Probably need bonded T1's.
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So you will need at least 3000K theorhetically.
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by:zwig2002
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Can terminal services print to a local printer?
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