SAML Authentication between Citrix & Microsoft with Azure MFA

As a result of increasing projects, here is a little how to with the summary of my previous articles. The main points are:

  • Azure AD Seamless Single Sign-On (PTA / PHS)
  • SAML Authentication (Azure AD as IdP & Citrix Gateway as SP)
  • Citrix Federated Authentication Service (FAS)
  • Microsoft Azure Multi-Factor-Authentication with Conditional Access

Requirements

  • Fully working Citrix Virtual Apps and Desktop Environment (StoreFront & DDC Minimum Version 7.9)
  • Citrix ADC with successful base configuration & activated Enterprise or Platinum license (Minimum Version 12.1 Build 50+ for native workspace app, for browser Minimum Version 11.1)
  • Configured Unified Gateway vServer
  • Internal and external DNS entries for Unified Gateway vServer (e.g. citrix.deyda.net)
  • Certificates for DNS entries (wildcard certificates are the easiest)
  • Existing Azure Tenant with Azure-AD base configuration (Domain, AAD Sync) & activated Azure AD Premium license
  • AD Connect version installed and configured (Minimum Version 1.1.644.0)
  • Firewall release for *.msappproxy.net on port 443
  • Domain administrator credentials for the domains that connected to Azure AD via AD Connect
  • Installed Authenticator App on Test User Mobile Phone
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Citrix Virtual Apps and Desktops & WEM 2003 is released

The new current releases of Citrix Virtual Apps and Desktops, Workspace Environament Management & Citrix Provisioning are now available. They contains many new features compared to the last LTSR.

Citrix Virtual Apps and Desktops 2003
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ADV190023 – Enable LDAPS in Windows DC and Citrix ADC

Important Info:
The scheduled update (ADV190023), regarding LDAP Signing and Channel Binding for new and existing domain controllers, scheduled for March 10, 2020, has been postponed to the second half of calendar year 2020. The March 2020 update will only provide additional auditing capabilities to identify and configure LDAP systems before they become inaccessible with the later update.

The later update results in no more connections to the domain controller, via unsigned / Clear Text LDAP on port 389. Then it is only possible to use either LDAPS via port 636 or Signed LDAP (StartTLS) on port 389.

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Install Teams & OneDrive in Citrix (Machine-Based)

In the past months, I have had to deploy Microsoft Teams and OneDrive from the Office365 portfolio in Citrix environments, in addition to the standard office applications in numerous projects.

Microsoft Teams

The standard installation, that the user can perform through the Office365 portal, is a user-based installation. In a Citrix environment, this is only recommended for desktop operating systems (pooled or personal desktop).

Installation

In order for Teams to function in server operating systems (multi-user capable), the Machine Based Installer must be used. In this case, part of the data is stored in the folder C:\%PROGRAMFILES%\Microsoft\Teams. However, Teams can no longer be updated automatically as soon as a new version is available. This mode is recommended for non-persistent environments.

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FSLogix Container (Office/Profile) in Citrix Environments

Recently, I have been involved more and more in projects where Office365 is to be fully implemented in Citrix environments. This means that the customer not only needs the standard Office applications Outlook, Excel and Word, but also wants to use teams and OneDrive.

But this is exactly where we, without additional software, have big problems in non-persistent desktop environments. For example with our profiles (Team Installer stores its data in the profile) or so that the data is downloaded from the Internet every time (excluding OneDrive Sync data in the profile).

However, we have recently been in the fortunate position of being able to use FSLogix “free of charge” for this purpose, if we meet the following requirements:

  • Microsoft 365 E3/E5
  • Microsoft 365 A3/A5/ Student Use Benefits
  • Microsoft 365 F1
  • Microsoft 365 Business
  • Windows 10 Enterprise E3/E5
  • Windows 10 Education A3/A5
  • Windows 10 VDA per user
  • Remote Desktop Services (RDS) Client Access License (CAL)
  • Remote Desktop Services (RDS) Subscriber Access License (SAL)
Profile Container Multiple Sessions FSLogix
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