When using User/Device licensing in Citrix, licenses are occupied for up to 90 days, which is a long time if you have a limited amount of licenses. If you need to release them, here is how you can do it:
Stop the service Citrix Licensing Service, Citrix License Config Service and Citrix Support Service
Delete the following folder (or rename it, just to be sure): "C:\Program Files(x86)\Citrix\Licensing\LS\resource\cache"
Start the service Citrix Licensing Service, Citrix License Config Service and Citrix Support Service
What do we need for a Citrix Virtual Apps and Desktops (XenApp and XenDesktop) deployment?
Active Directory
Citrix Delivery Controller
Citrix Storefront
One Citrix Virtual Delivery Agent (VDA)
Citrix License Server
A Database Server (SQL Server)
I will be consolidating Citrix Delivery Controller, Storefront, and License Server into one VM since this is a lab environment. In a production environment, you would use 2 VMs for Citrix Delivery Controller (for High Availability – HA), two for Citrix Storefront, and one for the License Server. The VDA count depends on user size.
Using the same two VMs for Delivery Controller and Storefront is also viable.
In my lab, all the servers are housing Windows Server 2019 Datacenter.
First, download the ISO on citrix.com. You will need an account and if you don’t have any partnership with Citrix, it is very difficult to get those files. There is a form you can fill and all you can do afterward is hope that they give you the files. Otherwise, there is no way of getting them publicly.
After mounting the ISO Autoselect.exe can be run.
Select Virtual Apps and Desktops. Virtuals Apps would just publish single programs as apps.
Start by installing Delivery Controller and other components.
Just in case you are wondering: Some obvious steps will not be shown.
We are installing all the features on the same server. Like I said, Delivery Controller and Director should be on one server, License Server on another, and Storefront on another. Storefront and Delivery Controller should have 2 VMs each for High Availability.
I am also using SQL Express on the same server. Normally you would use a dedicated instance on a separate database server.
The server will be restarted. You will need to mount the ISO again and select the target folder:
And after some time…
Our main tool is going to be Citrix Studio.
Make sure you a logged in with a domain user. Local users are not supported.
Configuring a new site.
These parameters will be automatically populated if SQL Express is being used. If using a separate database server a script can be generated to create the databases and tables.
My license server is hosted on the same server.
A connection to VMware or Hyper-V can be made. I am using Azure.
I will select “Other Tools” this time, I’ll make a post about Citrix MCS another time.
Enter your Azure Subscription ID and any name and then select “Create New”.
You will log in to Azure AD. This process creates a new Service Principal in Azure AD that allows Citrix to start, stop, create, and delete VMs in Azure.
In your Subscription under Access control (IAM) you will see a new App Principal as a Contributor.
App-V and AppDNA is not our focus right now.
Here is the summary of my settings.
To deliver a desktop we need at least one server to connect to.
Create a new VM, join it to the domain, and install the Virtual Delivery Agent (VDA).
Run autoselect.exe inside the ISO again.
We are not creating a Master Image for MCS. The Delivery Group will have a catalog of one machine.
Citrix Workspace App is not needed. You can de-select it.
I did not select any additional components.
Add the Delivery Controller.
Enable both features
Leave Firewall Rules to automatic.
Prerequisites will be installed.
Server will restart twice.
Create a Machine Catalog containing the Remote Desktop Session Host.
This is a server with multiple users connecting to it.
Select the VM and the computer account.
Give it a name.
Create a Delivery Group.
Select the Machine Catalog we just created
You should probably create a custom group to limit the users.
Add a new desktop and give it a name. I use “TreatAsApp” to show both Desktops and Apps in one tab.
Under Search, we can see if the server has successfully registered with the Delivery Controller.
Create a self-signed certificate (I do not have Active Directory Certificate Services on my lab environment). I might do a post about that in the future.
Run through the wizard (easy).
Make sure you select the personal certificate store.
Add a new Binding on port 443.
Select the certificate you just signed.
Now both 80 and 443 are active:
Change the Base URL to HTTPS
Now HTTPS is being shown:
Configure Passthrough authentication
The storefront URL should be added to the Trusted Sites for pass-through authentication to function properly. Make sure to change "User Authentication" to "Automatic logon with current username and password". The default setting is "Automatic logon only in Intranet Zone"
Also, configure pass-through authentication for Receiver for Web Sites.
Change loopback communication to OnUsingHttp:
Change “Enable loopback communication” to OnUsingHttp
Set this Site as default in IIS:
Configure Delivery Controller to use SSL
Storefront does not accept self-signed certificates, so an internal Certificate Authority is needed for SSL communication between Storefront and Delivery Controller.
That's it! It was a long but very interesting post.
I got tasked with installing a brand new Windows Server 2019 with the Remote Desktop Services (RDS) role. It was a pretty straightforward installation, but minor things might work differently compared to previous versions of Windows Server (I was migrating off Windows Server 2012 R2).
Start by adding the RDS role through Server Manager.
Select the RDS installation:
I went for the Quick Start because my deployment is fairly basic.
Session-based deployment enables multi-session support on the server.
The server should be automatically selected.
The three roles (RD Connection Broker, RD Web Access and RD Session Host) will be installed.
After the installation a license warning will be shown in the Notification Center.
Two things are needed in order for licensing to work properly: The license server and licensing mode. In a production environment, usually there is a separate server hosting the RDS Licensing service.
Make sure you select the server by moving it to the right with the arrow.
In a production environment a custom group should be used to control the number of permitted users.
User profile disks were not needed in my environment.
After the creation, there are some things that should be changed in the Collection properties (Server Manager > Remote Desktop Services > Collections > Collection Name):
These are my specific settings, you should change the parameters based on your experience or leave them at their default values.
Older clients might have problems with these security settings (like Network Level Authentication - NLA)
A quick post on how to change the Windows display language with Powershell. You might use these commands based on any logic that determines the user's location/language. For instance, I created a script that gets executed on logon and sets the language based on some criteria (maybe an Active-Directory group or attribute).
