Remko Weijnen's Blog (Remko's Blog)

About Virtualization, VDI, SBC, Application Compatibility and anything else I feel like

Archive for February, 2017

Google Earth fix for XenApp, RDSH & Horizon

Google Earth LogoBoth Google Earth and Google Earth Enterprise do not work correctly for multiple users on shared Hosted Shared Desktops (I still prefer to call it Server Based Computing but that’s likely because I’m an oldtimer).

Problem summary
So let’s look at the actual issue: the first user on a server is able to launch Google Earth but for any subsequent users on the same server Google Earth fails silently.

Problem details
Google Earth uses various synchronization objects such as Events and Mutexes but registers those in the \Global namespace instead of the \Local namespace.

 

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Citrix NetScaler LogoRecently I switched over my blog from a hoster to a self hosted VM. In my setup I am using Citrix NetScaler as a reverse proxy.

Simular to when you’re using a 3rd party reverse proxy such as CloudFlare you will see the IP address from the reverse proxy instead of the actual Client IP Address on your webserver.

This means that your logging will all show the same, internal, IP address and that IP Based Access Rules will not work.

Fortunately this is easy to solve by having NetScaler add the Client IP Address in the headers and rewriting the address on your webserver.

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Blog improvements

When I started this blog in 2007 (wow that’s almost 10 years ago) I went for a cheap web hoster with a reasonable performance to host it.

In the beginning performance was acceptable but over the years it has degraded and of course user experience standards have changed.

I decided it was time to do something about it so I’ve moved the blog from a shared platform to my own server.

This server is running on optimized flash storage  where most writes are DeDuplicated and never actually hits the flash disks:

image

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Citrix Receiver Unknown client error 1110

Citrix Receiver and StoreFront error messages are sometimes confusing or lacking details so I decided to make little blog notes about common issues when I see them. So without further ado here’s #1:

In Citrix Receiver I tried to logon remotely via NetScaler Gateway and got the following error message: “Cannot get your apps from the store

Cannot get your apps from the store

Citrix Receiver

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