nAppliance Networks Blog

UAG Server

UAG 2010: Error "Unknown error 0xc00000403" when adding UAG machine to a Array

Posted Wed, 04/06/2011 - 12:30 by inder


You may encounter the following error while joining an array member to a UAG array.

 

UAG 2010: Error "Applying Network Access Protection configuration failed"

Posted Wed, 04/06/2011 - 12:19 by inder

 

Problem:

When trying to activate the configuration on a UAG server, you might find that the activation failed and you can see the following error messages in the status window:

Error: Applying Network Access Protection configuration failed.

Error: The UAG DirectAccess configuration cannot be activated

UAG 2010: Error "An unknown error occurred while processing the certificate. Contact the site administrator"

Posted Wed, 04/06/2011 - 11:58 by inder

A client that is trying to access an SSL enabled application on a backend server (e.g. Exchange) that is published through the Forefront UAG portal gets an error, specifically:

“An unknown error occurred while processing the certificate. Contact the site administrator”.

The cause:

UAG 2010 RTM: Integrating NAP Policies

Posted Mon, 11/01/2010 - 12:11 by inder

Microsoft UAG 2010 can be integrated with Windows NAP (Network Access Protection) to make sure that the computers comply with the IT policies before user’s login into the UAG portal. Windows Network Access Protection is part of Windows 2008 and 2008 R2 servers. No extra hardware or licensing is required to implement Microsoft NAP in an environment. Moreover, there are simple settings in UAG for integrating NAP to do policy enforcement.

UAG 2010: Removing an Installed UAG Update from nUAG Appliance

Posted Thu, 10/21/2010 - 09:28 by inder

When you install an update for Microsoft Forefront UAG, it does not appear under the Windows control panel > Add/Remove programs. So, If you have to remove it for some reason then how do you remove an update? Well, UAG has an in-built script to remove the previously installed updates. The script is located at

C:\Program Files\Microsoft Forefront Unified Access Gateway\common\bin and the name of the script is "UninstallUagUpdate.cmd". You will need to execute the script from a command prompt with administrative privileges. The script has two parts;

1. It calls "RepairInstallation.vbs" which repairs the UAG installation

New UAG Book by Ben Ari (MS FTE)

Posted Thu, 09/30/2010 - 01:24 by inder
After a long wait finally someone is putting together something on UAG. A Microsoft employee named Ben Ari is writing a book on Microsoft Forefront UAG. It’s pretty interesting to me because I have worked with Ben Ari on few technical issues both inside and outside Microsoft. Check out thye details of his new book at https://www.packtpub.com/microsoft-forefront-uag-2010-administrators-handbook/book

 

Microsoft Forefront UAG Update 2 available for download

Posted Wed, 09/22/2010 - 23:59 by inder

Microsoft announced the release of Update 2. It seems that Microsoft has finally admitted that there were few limitations in the product regarding 64bit clients and with update 2 they have tried to get them fixed. You may download the update 2 from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9dcccebc-accb-4229-901a-792cc66791de which also describes the changes in update 2.

UAG: Warning, POST without Content-Type not Allowed

Posted Wed, 07/21/2010 - 12:59 by inder

While working on a support case recently, i came across this issue wherein we were trying to publish an application and there was a warning message generated in the web monitor logs about "POST without Content-Type not Allowed" while accessing it from a client machine.

The issue was that the request does not contain a Content-Type header, and the method used in the request was POST. According to the configuration of Forefront UAG, POST without a Content-Type header is not allowed by default.

To allow POST requests without a Content-Type header for this application, do the following;

UAG: Publishing VMWare View using Forefront Unified Access Gateway

Posted Wed, 07/21/2010 - 12:39 by inder

Supported client OS: Windows XP 32bit and Windows Vista 32bit

Why Citrix Presentation Server does not work from Mac OS 10 X when published through UAG, but works when published through IAG?

Posted Thu, 06/17/2010 - 07:14 by inder

We will discuss various scenarios related to accessing Citrix Presentation Server (Web Interface 3.0/4.0/4.5) and Citrix XenApp (Web Interface 5.0) from Mac OS 10 X machines which are published through UAG and IAG SP2 UP3(In general IAG SP2), but not configuration. For configuration, please follow the steps described at http://blogs.technet.com/b/edgeaccessblog/archive/2010/03/25/how-to-publish-citrix-xenapp-5-x-with-uag-2010.aspx

Details of components used in testing:

  • UAG (without UP1) and IAG 2007 SP2 UP3
  • Mac OS X 10.5.2 Leopard. Updated versions like 10.5.7 and 10.5.8 are also applicable.
  • Safari 3.0.4 (5523.15) and Mozilla Firefox 3.6.3 but, all pictures shown here are of Safari 3.0.4((5523.15). It applies to all new versions of Safari 4.0 and Mozilla.

By default, UAG comes with only Citrix XenApp (Web Interface 5.0) template. We have created template for Citrix Presentation Server (Web Interface 3.0/4/0/4.5) in UAG copied from IAG SP2 UP3.

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