[THIN] Re: .NET and Citrix

  • From: Henry Sieff <hsieff@xxxxxxxxxxxx>
  • To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
  • Date: Fri, 28 Feb 2003 09:41:05 -0600

Ditto on that Ron.

Chad, it sounds like you and I must work in similar environments :).

We serve out 1 primary application and a few secondary apps on citrix, as
well as some desktops (for our travelling employees) and already a slew of
web-based ASP apps (the other ASP, not App Service Provider).

There are two ways to deploy a .NET web service app that we are looking at
(to replace the vb apps served out via citrix)

1) business logic deployed as a web service with a lightweight gui deployed
to clients
2) same as above but with the gui deployed as an ASP.NET application

(2) is the likely choice, because we like the freedon to do patch releases
without involving the end-user (which was motivator for thin-client to begin
with)

In either scenario, citrix is reserved for those users still needing a full
desktop (in which case, we may just replace with TS) and thats it.

What do you lose? Well, you can't do things like shadow a session, and once
again, client-side issues are going to be significant. Also, when we
thin-client, we forklifted alot of the code with very little modification
from the fat-client version. This wouldn't be as simple (massive rewrite for
the developers). 

However:
a) even with citrix, we deal with a lot of client side issues (its just
easier to differentiate whether or not an issues is related to the citrix
client or the application)
b) session shadowing is now used to troubleshoot alot of citrix issues (and
for training). we'll miss the latter, but certainly not the former

Its a mixed bag of pro's and con's. However, I don't think these are
orthogonal or complementary strategies (for my purposes, anyways). We will
choose to either deploy or primary rich-gui apps as citrix-delivered or
ASP.NET based.

Henry

> -----Original Message-----
> From: Schneider, Chad M. [mailto:CMSchneider@xxxxxxxxx]
> Sent: Friday, February 28, 2003 9:08 AM
> To: 'thin@xxxxxxxxxxxxx'
> Subject: [THIN] Re: .NET and Citrix
> 
> 
> 
> Good information, but I have people looking at it more from, 
> "once we go
> web-services, there will be no need for Citrix, everything will be web
> based."
> 
> Rephrase, Ron, that is GREAT info.
> 
> -----Original Message-----
> From: Ron Oglesby [mailto:roglesby@xxxxxxxxxxxx]
> Sent: Friday, February 28, 2003 9:02 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: .NET and Citrix
> 
> 
> 
> Lets talk about a few things here. I don't know if anyone else really
> has it running but I have it (RC2) in two clients using it 
> both as an MS
> only env, and as a MetaFrame platform.=20
> 
> Both locations are using it for some pre-prod stuff right now 
> but there
> are some users using it. Limitations and or problems:
> 
> 1st problem that hits everyone is lack of published app 
> support. Nothing
> like it, it pretty much operates as it does now.
> 
> 2- Licensing model is cool I like that Named user or per device (as it
> is now)
> 
> 3- XP pro clients issued after the release date of 2003 Server will no
> longer have a terminal server cal built in. You have to buy 
> it. (Typical
> MS pain)
> 
> 4- MS Load Balancing, Coming on all version now. Only problem 
> is that it
> is MS load balancing. It still does not do what a terminal 
> server needs
> and look at current number of users logged on or at metrics 
> that really
> matter to a Terminal Server.
> 
> Of course MS LB'ing is also limited to 32 nodes MAX, and performance
> starts to go down above 20
> 
> 5- If you use a Third Party load Balancer it gets better but still
> doesn't Match Citrix.
> 
> 6- The session directory that is used for reconnecting clients to
> disconnected sessions IS cool. But it has two problems. 1- 
> LB'ing routes
> users any where it feels like. Once the user is establishing a connect
> to a server the session directory is checked. IF they have an open
> session then the user basically cut off from that server and 
> then a new
> RDP session is established with the original server. Of 
> course this only
> happens after the LOGON is done on the first server since it 
> needs your
> username and password...... Kinda Clunky if you ask me. The second
> problem with this is that you have to have Enterprise to use it.
> Standard server will not use the session directory but can host it for
> the farm.
> 
> 8- The RDP client is basically the same one that comes with XP clients
> now, and the TSAC has changed very little, Of course with the 
> RDP client
> you can save RDP files (if you look at them they look kinda like ICA
> files). The problem here is that the Active X control used by the TSAC
> wont use an RDP file. I had this wild idea of building RDP files and
> creating links to them the way we used to with ICA files.  
> Still working
> on this a bit now.
> 
> Ron
> =20
> 
> 
> 
> Ron Oglesby
> Senior Technical Architect
> =20
> RapidApp
> Office 312.372.7188
> Mobile 312.961.2380
> email roglesby@xxxxxxxxxxxx
> =20
> 
> 
> -----Original Message-----
> From: Schneider, Chad M. [mailto:CMSchneider@xxxxxxxxx]=20
> Sent: Thursday, February 27, 2003 4:11 PM
> To: 'thin@xxxxxxxxxxxxx'
> Subject: [THIN] .NET and Citrix
> 
> 
> 
> I need some help.
> 
> I have people here beginning to discuss .NET quite heavily and how we
> won't need Citrix, once we go to .NET web based apps., etc.
> 
> I have heard people talk about how Citrix will compliment those apps.
> Any input?
> 
> Chad M. Schneider
> Technology Analyst II
> Curwood, Inc.
> 920-303-7609 - Office
> 920-909-7609 - Pager
> 
> 
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> set Digest or Vacation mode use the below link:
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> *********************************************************
> This Week's Sponsor - ThinPrint
> Simply the best print solution for Citrix
> Metaframe and Microsoft Terminal Services!
> http://www.thinprint.com
> **********************************************************
> 
> For Archives, to Unsubscribe, Subscribe or 
> set Digest or Vacation mode use the below link:
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Metaframe and Microsoft Terminal Services!
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