Cannot Connect To VMware Horizon Connection Server

The last couple of days, I’ve spend with deploying a small VDI setup in my home lab and get it up and running.
After painful hours of setting up a Active Directory, DHCP, DNS, VMware Horizon Connection Server and Horizon Composer Server, I thought I am all ready to get connect to my amazingly slow VDI desktops, sitting on 7200RPM spindles.

I tried connecting with my VMware Horizon Client to my Connection Server and I was welcomed by a non-impressive error message: Error: Unable to resolve server address: nodename nor servername provided, or not known

One would think, this message means one of the following:

  • Wrong IP/DNS name provided
  • Some service is not running
  • Something is seriously screwed up

After doing some research on the error, I was able to resolve it by unchecking: Use Secure Tunnel connection to desktop


Mind The Virtualization – What Is It About?

Welcome to, by Jan Schwoebel.

You are probably thinking “Well, another blog about virtualization and all this stuff”.
So, how will this blog be different from all the other ones out there?

I have worked in the IT industry for roughly 7 years and have spent some years in Technical Support for storage vendors. During my journey within Technical Support, I have developed an extensive interest in data center virtualization and VDI (Virtual Desktop Infrastructure). Within the last couple of years, my main focus has been VMware vSphere, Microsoft Hyper-V and Citrix Xen.

Server virtualization, virtualized desktops, virtualized networking, virtualized storage and now virtualized data centers. We all know it, virtualization plays a major role in today’s business. Due to the nature of my job, I have to troubleshoot different environments every day and I love it. However, to be successful, you have to constantly expand your knowledge.

Anyway, let’s go back to the question of how this blog will be different than others. There are several blogs out there which provide an overview of new products and how you should design your VDI solution or how to virtualize your datacenter. Nevertheless, I feel like nobody really covers how to troubleshoot Hyper-V, ESXi, Xen and so on. I believe that knowing how to troubleshoot your environment is at least as important as studying the best practice guides of all the vendors out there. Unless, of course you like to spend hours working with your vendor’s  technical support center. 🙂