Archive for May 27, 2011

Bring/Buy your own (device).. Or Choose your own device

I’ve been to BriForum London this year and one of the sessions I attended was led by Claudio Rodrigues and Louise Taylor with the subject of BYO(D). The first thing that was mentioned was that the concept of BYOPC isn’t up to date anymore. It should be BYO or BYOD. Claudio even questioned if it should be Bring your own device or Buy your own device, he did a lot of interviews with customers and they said that most of them provide budget to their employees to buy a device to bring to work.

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Citrix: XenDesktop, artifacts and display errors

I recently helped building a PoC containing Citrix XenDesktop and XenApp with RES Workspace Manager and Microsoft APP-V, while testing the applications on the different platforms we discovered that a certain application had some strange looking artifacts and display errors when started on XenDesktop. These artifacts didn’t show up when started on XenApp or when using the VMware Console and start this specific application. After some research I found the following posts on the Citrix Forums:

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Citrix: Update Citrix Access Gateway 4.x to 5.0.2, no adminlogonpoint

Last week I upgraded two Citrix Access Gateways from version 4.6 to 5.0.2. The first CAG update went without any problems; I opened up the Access Gateway Management Tool, connected to the CAG and pointed to the update file download from When the progress bar was done I had to restart the CAG and when it came up again I could reach it via https://oldipofcag/lp/adminlogonpoint instead of using the old tool.

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Microsoft: Update to SP1 and Microsoft Forefront

Today I had to update some Citrix XenApp 6 servers to SP1 and like I already knew I have to install a certain patch I blogged about earlier. But when I tried to install SP1 on one particular server I got an error stating that the installation was failed and I had to follow a link to a Microsoft KB article.

This article was mentioning Update for Microsoft Forefront Client Security (KB2394433), so when I downloaded this patch from the catalog pages from Microsoft and installed it I was able to install SP1 with success.

Citrix: How to Configure Access Gateway 5 Standalone for Use with XenDesktop 5

I just found the following article which is helpful when configuring a Citrix Access Gateway 5 with XD5;


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Citrix: Hanging XenApp 6 servers

XenApp 6

XenApp 6

Yesterday I was at a customer to troubleshoot the two newly added Citrix XenApp 6 servers to their existing farm. The existing farm worked without any problems but the two new Citrix servers wouldn’t accept sessions. If a session was started directly the logon process would stop at the ‘Welcome’ screen from the ICA client. I tried to troubleshoot this problem but the logfiles couldn’t point me in the right direction until I noticed that SP1 for Windows Server 2008 R2 was installed.

The Citrix farm runs on a VMware vSphere platform and the Windows hosts where created based on a template and the Citrix XenApp servers in the farm where based on a pre-SP1 image but the two new servers where based on a SP1 image. After installing  CTX125388 (Hotfix XA600W2K8R2X64001 – For Citrix XenApp 6.0 for Windows Server 2008 R2 – English) the problems where solved.

So leasons learned: Install this hotfix after you deploy XenApp 6 on a Windows Server 2008 R2 SP1 machine and make sure you communicate these kind of changes, it prevents unnecessary problems.