[THIN] Re: PS4 + Appsense

  • From: "Rick Mack" <Rick.Mack@xxxxxxxxxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Sun, 23 Jul 2006 07:38:49 +1000

Hi,

The best answer for the first question is probably to quote the Appsense
knowledgebase:
---------------------------

Printing on Windows 2003 Citrix Server & Application Manager.
(Ctx_SmaUser)  
Ref # AP10319
 
Symptoms 
Printing problems may occur when Appsense Application Manager is
installed on a Windows 2003 Server with Citrix Presentation Server 4.
Some auto-created printers, which are installed at user logon, may fail
to print. When the Application Manager Service agent is stopped or
disabled then printing is fine. 
Filemon shows a buffer overflow triggered by the Appsense agent process
when reading c:\windows\system32\spool\drivers\\w32x86\3\hpoemui.dll. 

This is known to occur with a HP LaserJet 8100 PCL 6 printer. 
This issue does not occur on a Windows 2000 Citrix Server.
 
Cause 
The Ctx_SmaUser account (which the Citrix Print Manager Service
(cpsvc.exe) uses to logon) is not recognized as a Trusted Owner in
Application Manager and is thus prevented from accessing the Citrix PS4
Server.
 
Solution
 
The following changes within Application Manager should resolve this
issue: 
1. Add the Ctx_SmaUser local account to the Trusted Owners list in
Application Manager 
2. Create a User rule for %Computername%\CTX_SMA_USER with High Security
and Trusted Ownership checking enabled. 
3. Add C:\temp to the Accessible Items for User Rule created in step 2 

A (less secure) alternative would be: 

1. Add CTX_SMA_USER as a Trusted Owner 
2. Create a user exception with NO SECURITY 

Although there are no known exploits with the second alternative,
Appsense always recommends maintaining maximum security throughout your
network wherever possible. 
----------------------

I'd add that the HP Color LaserJet 4650 has the same issue. So if you
don't want Appsense to sometimes break your printing, the above stuff
will need to be part of your build process.

As far as the second question goes, I'm still a bit ambivalent about the
Environment Manager. 

Functionally it's brilliant and a really neat product but when you've
spent half your life scripting stuff and using flex profiles, having to
do it all via a point and click GUI is almost kind of painful. 

So do I think the hybrid profile stuff is good, I guess the answer is
yes. Do I like it? Not yet ;-)

But being to do stuff like getting rid of group policies for remote
users with no more slow logins due to slow policy loads etc is kind of
attractive.

Regards,

Rick

Ulrich Mack
Volante Systems

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of M
Sent: Saturday, 22 July 2006 6:11 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: PS4 + Appsense


Hello Rick,
 
How have you handled Appsense Application Manager and the Ctx_SmaUser
account ? Trusted owner and excluded settings from applying ?
 
Have you had a look at the Environment manager yet ? Any thoughts on the
Hybrid Profile element ?
 
M

        ----- Original Message ----- 
        From: Rick Mack <mailto:Rick.Mack@xxxxxxxxxxxxxx>  
        To: thin@xxxxxxxxxxxxx 
        Sent: Friday, July 21, 2006 12:59 AM
        Subject: RE: [THIN] PS4 + Appsense

        HI,
         
        That sounds like a leading question, but I guess I'm game ;-)
         
        Yes.
         
        Problems?
         
        regards,
         
        Rick
         
        
        Ulrich Mack 
        Volante Systems 
        

  _____  

        From: thin-bounce@xxxxxxxxxxxxx on behalf of M
        Sent: Fri 21/07/2006 8:37
        To: Thin@xxxxxxxxxxxxx
        Subject: [THIN] PS4 + Appsense
        
        
        Hello there,
         
        Is anyone using Appsense (Application Manager) with PS4 ?
         
        M

        
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