How to optimize Citrix Director performance

Issue

Director can be slow in first logon page. Also some Director operations and performance settings cannot be configured out of the box in the Director GUI, they must be configured manually.

Solution

A list of Director tweaks which improve the overall Citrix Director performance are available by Carl Stalhood on his blog (see “source” section of this article). All Citrix Director tweaks and optimizations are listed below for convenience.


Director Tweaks

Session timeout

By default the idle time session limit of the Director is 245 min. If you wish to change the timeout, here is how to do it:

  1. Log on to the Director Server as an administrator
  2. Open the ‘IIS Manager’
  3. Browse to ‘Sites > Default Web Site > Director’ in the left hand pane.
  4. Open ‘Session State’ in the right hand pane.
  5. Change the ‘Time-out (in minutes)’ value under ‘Cookie Settings’
  6. Click ‘Apply’ in the Actions list

SSL Check

If you are not securing Director with an SSL certificate you will get this error at the logon screen.

To stop this:

  1. Log on to the Director Server as an administrator
  2. Open the ‘IIS Manager’
  3. Browse to ‘Sites > Default Web Site > Director’ in the left hand pane.
  4. Open ‘Application Settings’ in the right hand pane.
  5. Set UI.EnableSslCheck to false.

Disable Activity Manager

From Disable the visibility of running applications in the Activity Manager in Advanced Configuration at Citrix Docs: By default, the Activity Manager in Director displays a list of all the running applications and the Windows description in the title bars of any open applications for the user’s session. This information can be viewed by all administrators that have access to the Activity Manager feature in Director. For Delegated Administrator roles, this includes Full administrator, Delivery Group administrator, and Help Desk Administrator.

To protect the privacy of users and the applications they are running, you can disable the Applications tab from listing running applications.

  • On the VDA, modify the registry key located at HKLM\Software\Citrix\Director\TaskManagerDataDisplayed. By default, the key is set to 1. Change the value to 0, which means the information will not be displayed in the Activity Manager.
  • On the server with Director installed, modify the setting that controls the visibility of running applications. By default, the value is true, which allows visibility of running applications in the Applications tab. Change the value to false, which disables visibility. This option affects only the Activity Manager in Director, not the VDA. Modify the value of the following setting: UI.TaskManager.EnableApplications = false

Large Active Directory / Multiple Forests

From CTX133013 Desktop Director User Account Search Process is Slow or Fails: By default, all the Global Catalogs for the Active Directory Forest are searched using Lightweight Directory Access Protocol (LDAP). In a large Active Directory environment, this query can take some time or even time out.

If multiple forests, see Citrix Blog Post Using Citrix Director in a MultiForest Environment.

  1. In Information Server (IIS) Management, under the Desktop Director site, select Application Settings and add a new value called Connector.ActiveDirectory.ForestSearch. Set it to False. This disables searching any domain except the user’s domain and the server’s domain.
  2. To search more domains, add the searchable domain or domains in the Connector.ActiveDirectory.Domains field.

Site Groups

From Citrix Blog Post Citrix Director 7.6 Deep-Dive Part 4: Troubleshooting Machines:

If there are a large number of machines, the Director administrator can now configure site groups to perform machine search so that they can narrow down searching for the machine inside a site group. The site groups can be created on the Director server by running the configuration tool via command line by running the command:

C:\inetpub\wwwroot\Director\tools\DirectorConfig.exe /createsitegroups

Then provide a site group name and IP address of the delivery controller of the site to create the site group.

Director Configuration Script

Johan Greefkes at Script for configuring Director at Citrix Discussions was kind enough to provide a script that does the following:

  • Sets the Delivery Controllers that Director communicates with
  • Disables SSL Check
  • Sets Logon.aspx file to default to a domain name
  • Adds a footer that displays the name of the Director server

The same DirectorReconfigureWithLogonMod.ps1 script seems to be available at Citrix’s Github\Powershell-Scripts repository.

Source

https://www.carlstalhood.com/citrix-director-1912-ltsr/#directortweaks

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