Note: The below process works only for esx version till 4.X. Not for 5 and 5.X
Changing your host’s network name and SSL certificate
When you first install ESXi your host will be given a hostname of “localhost” and domain of “localdomain”. You can change this at the console or with the VI client.
Using the Console 1) Press (Customize System) 2) Select Configure Management Network 3) Select DNS Configuration 4) Select the option “Use the following DNS server addresse and hostname” 5) In the hostname enter the hostname and domain for your host.
There are certain situations in which HDX MediaStream for Flash failsfor certain Website URLs. This happens as a result of certain Web pages that have been designed to work in a way that is not compatible with our HDX architecture. These failures cannot be detected, so HDX has been designed to create and use a Dynamic Blacklist to remember Websites that provoke these failures. In these situations, the HDX feature falls back to server-side Flash rendering for the current browser tab that provoked the failure.
Till XenApp 6.5 or XenDesktop 5.X In order for the users to access the desktops published in XenDesktop, they mst have client installed in their local machines. By default, Clients will be available at the Web Interface folder(at C:\Program Files (x86)\Citrix\Web Interface\5.4.0\Clients\Windows\Receiver). But in the webinterface.conf file we have ClientIcaWin32=Filename:Citrixonlineplugin.exe, which means when users who doesn’t have the receiver insalled, try to open the WI site, it searches for citrixonlineplugin.exe file and in the Receiver folder(given above), we dont have that exe and it will be redirected to Citrix.
Symptom
Citrix Microsoft Management Console (MMC) based administrative consoles such as Access Management Console, Delivery Services Console take an extended time to start. Once running, the consoles operate normally.
Cause
Citrix MMC based administrative consoles feature components that are written using the Microsoft .NET Framework. Citrix signs these .NET based components with an Authenticode signature as an added security mechanism.
In situations where a Citrix MMC based administrative console is run from a computer without internet access, Windows is unable to verify the Authenticode signature, and as a result this causes a delay during the startup of the console.
The personal vDisk feature in XenDesktop retains the single image management of pooled and streamed desktops while allowing people to install applications and change their desktop settings.
Unlike traditional Virtual Desktop Infrastructure (VDI) deployments involving pooled desktops, where users lose their customizations and personal applications when the administrator alters the base virtual machine (VM), deployments using personal vDisks retain those changes. This means administrators can easily and centrally manage their base VMs while providing users with a customized and personalized desktop experience.
XenDesktop Active Directory Configuration Wizard is not available in XenDesktop 5.x.
Background
If you decide to use Active Directory-based controller discovery in your environment, in the previous versions of XenDesktop, you could use Active Directory (AD) Configuration Wizard to create and configure the AD Organizational Unit (OU) for the farm but in XenDesktop 5.x, you have to use PowerShell script to perform that configuration.
AD-based Controller Discovery
Complete the following in order to configure your environment for AD-based controller discovery:
Blade PC/Server: Series of servers added to a chasis and inserted it in a rack in datacenter.
Here in the front view, the green rectangles are single servers. In a single case we can add multiple servers. Small green rectangles are half blade servers(where processor and ram are less) and full rectangles(processor and ram are bit more) are servers. In the right hand side pic, we can see the back side of the blade server.
For desktops to be usable, they must register (that is, establish communication) with the correct controller or with any one of the controllers, if there are more than one.
The default operation, whose configuration is briefly described in this topic, uses information in the desktops’ registries to establish communication. This is referred to as registry-based controller discovery. You can also use an Organizational Unit (OU) in Active Directory (AD). This is referred to as AD-based controller discovery.
Citrix administrators are not set up automatically during XenDesktop installation. After installation, only local administrators on the server running the Controller have full administrative privileges, with authority to manage and administer all areas of the XenDesktop site. Only an administrator with full rights can create additional full or delegated administrators.
Note: Local administrators on the Controller always have full administrative privileges; these privileges always take precedence, regardless of delegated privileges that may later be explicitly assigned by Citrix administrators.
Upon first launch of Desktop Studio just after installation you’ll be presented with error message: “Object reference not set to an instance of an object. reload the snap-in to retry.”
Solution1:
Cause: Because “CitrixConfigurationService” service is NOT running on your system. In the eventvwr you’ll notice that reason why this service failing to startup. The most probable cause is that “This computer is not joined to a domain; these services cannot be run outside of a domain.
