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March 24, 2009

AAC and IE 8.0

Some days ago, Microsoft officialy released IE 8.0. Since IE 8.0 will be available trough Windows Update soon, more and more users will hit existing AAC deployments with this browser. Unfortunately this is not working as expected. This is, how an AAC portal page looks like in IE 8.0 with default settings:

Portal
OWA

The layout is crushed, links are missing and OWA is nearly unusable 🙁

A small change in the file C:\Inetpub\wwwroot\CitrixSessionInit\NUI.aspx solves the display issue by forcing IE 8.0 into IE 7.0 compatibility mode.

It is sufficient to add the following line in the header of the NUI.aspx file:

<meta http-equiv=”X-UA-Compatible” content=”IE=EmulateIE7″ />

Your header might look like this after the change:

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Citrix Access Gateway</title>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1" />
<meta name="CODE_LANGUAGE" content="C#" />
<meta name="vs_defaultClientScript" content="JavaScript" />
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5" />
<link rel="SHORTCUT ICON" href="themes/default/images/favicon.ico" type="image/vnd.microsoft.icon" />
<base id="baseElement" href="" runat="server" />
<link id="cssElement" rel="stylesheet" href="" runat="server" />
<!--[if IE]>
<style type="text/css">

Immediately your portal is rendered again as it should be 🙂

Portal
OWA

This is not a final solution for the problem, but until Citrix releases a fix for this issue it will do…

Regards
Ecki

October 21, 2008

Smart Card Single Sign On with PNAgent

All available documentation regarding “Single Sign On” or “Credential pass-through” with Smart Card and Citrix clients is limited to the Program Neighborhood client only, as can be seen exemplarily at Brianmadden . I don’t use this client in customer projects for a couple of years now but use the PNAgent or the Web client instead.

With these clients, a pass-through of the Smart Card PIN didn’t work, because they do not read their settings from the APPSRV.INI, which would allow for the neccessary settings.

Since client version 10.0, an Active Directory Group Policy Template can be found in every client installation directory, named “icaclient.adm”. All clients, starting with 10.0 now read the policy settings first and make use of the APPSRV.INI only in case, no policy is defined. This new feature allows now for a “Single Sign On” with SmartCard and PNAgent.

Here is, what you need to do, to get it up and running:

1. On the Presentation Server /XenApp Server

  • Confirm proper operation by logging in to a full desktop on the Citrix server. Insert a Smart Card and it should begin reading it. Enable “Trust requests sent to the XML Service”. This is necessary if using smart card pass through logon.

2. On the Web Interface Server

  • SSL must be configured and active (a web server certificate has to be installed) and the “Directory Service Mapping” has to be activated. This option can be found in the IIS Manager below the properties of the “Web Sites” folder:
  • Web Sites propertiesDirectory Service Mapper

  • The Web Interface site itself must now be configured. Open the Citrix Access Suite Management Console on the Web Interface server and run discovery if necessary to find the Web Interface site you wish to work with.
    Under “Configure Authentication” select “Smart Card with Passthrough”.

3. Registry

  • Check HKLM\System\CurrentControlSet\Control\TerminalServer\WinStations\ICA-tcp the value for “UseDefaultGina” should be 0 (1 disables the CtxGina).

4. Active Directory Policy

  • Import the ADM template into a Policy
  • Go to the “User Configuration” of the policy, leave the Computer part set to “not configured”. The following settings have to be enabled:
  • Citrix Policy

  • <PolicyName>\User Configuration\Administrative Templates\Citrix Components\Presentation Server Client\User Authentication\Smart Card Authentication has to be “Enabled” and “Allow Smart Card Authentication” and “Use pass-through authentication for PIN” have to be activated.
  • Leave everything else to “Not Configured”, provided that you are testing just Smart Card and PIN pass-through.

Now “Single Sign On” with Smart Card and PNAgent should work 😀

Unfortunately these instructions only work for Windows XP and Server 2003. At the moment, no Citrix client, including 11.0, allows for PIN pass-through with Vista and 2008 Server 🙁

Here are some more interesting links:

Regards
Ecki

July 29, 2008

Update – AAC tuning, part 4

I had to upgrade the document, because a customer wanted to set the color of the bar to a dark blue. The caption inside the bar could not be read anymore after this change, so we had to change the color of the caption to white. This way we got the contrast needed back. How to do that is added to the document now.

The howto is written in german. A translation into english is not available at the moment. Since the pdf utilizes a lot of pictures, you might be able to understand it anyway. As soon as i find the time, i will provide a translated version. Until then, you can download the german version here: AAC4_5_CustomizeLogonPoint_Rev1.1_DE.pdf

Regards
Ecki

July 12, 2008

AAC tuning, part 4

To adjust the look of an AAC LogonPoint at the CI of a company is not as easy as it is with a Citrix Web Interface deployment. In the following PDF i will show you a way to get there anyway.

The howto is written in german. A translation into english is not available at the moment. Since the pdf utilizes a lot of pictures, you might be able to understand it anyway. As soon as i find the time, i will provide a translated version. Until then, you can download the german version here: AAC4_5_CustomizeLogonPoint_Rev1.1_DE.pdf

This is, what your LogonPoint could look like after reading this document:
Angepasster LogonPoint - LoginAngepasster LogonPoint - Portal

Additional documentation about customizing an AAC LogonPoint can be found here:

  • Basic Customization of the Advanced Access Control 4.x Logon Point
  • How to Customize the Default View for Web Interface 4.6 When it is Embedded in Access Gateway Advanced Edition
  • And here you can find a currently very interesting article about AAC and FireFox 3.0:

  • Access Interface Appears Incorrectly with Firefox 3.0
  • Regards
    Ecki

    December 9, 2007

    Update: PNAgent Filter for Web Interface 4.6

    Not long ago, i had to implement the PNAgent Filter for Web Interface 4.6. It turned out, that the code itself of the modification didn’t need any changes from WI 4.5 to WI 4.6. To allow for an easy implementation, i nevertheless created an updated archive of the modification and updated the files for WI 4.6. Therefore all it needs is to replace one file, without the hassle to copy and paste code blocks to the right locations.

    Download FilterApps4.6

    This modification gives an administrator the power to hide Published Applications from the user. The only thing he has to do is adding a “#” sign in front of the application description. Very handy, if you use PNAgent to populate the Desktop and Start Menu and do not want the published Desktop to appear in the context menu of the PNAgent in the taskbar.

    See also: PNAgent Filter for Web Interface 4.5

    Regards
    Ecki

    July 21, 2007

    Web Interface 4.6 for Windows available

    Yesterday Citrix released the new Web Interface 4.6 for Windows. This version is mandatory for several new features and enhancements introduced with the Rollup Pack 01 for Presentation Server 4.5.

    Before installing Web Interface 4.6 you have to update your AMC (Access Management Console for Presentation Server 4.5) first. The new console snap-ins must be present before the new features can be installed successfully. The new AMC can be downloded here.

    The download of Web Interface 4.6 and aditional informations can be found here.

    Regards
    Ecki

    March 13, 2007

    PNAgent Filter for Web Interface 4.5

    Most of you will know the Web Interface addons and modifications from Thomas Kötzing. I use them myself quite often in customer projects. Until now, a badly needed modification was available only for WI 4.2. I am talking about the

    Program Neigborhood Agent Filter

    This modification gives an administrator the power to hide Published Applications from the user. The only thing he has to do is adding a “#” sign in front of the application description. Very handy, if you use PNAgent to populate the Desktop and Start Menu and do not want the published Desktop to appear in the context menu of the PNAgent in the taskbar.

    Because i needed this modification for a customer, i adapted the code of the existing modification for WI 4.5 and invite everyone interested in this modification to download it.

    Download FilterApps4.5

    Regards
    Ecki

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