Installation

Table Of Contents
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For Horizon Client for Android, see documentation on the Google Web site, such as the Android 3.0
User's Guide
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For Horizon Client for Linux, see the Ubuntu documentation
Prerequisites
Verify that the server certificate was generated with a KeyLength value of 1024 or larger. Client endpoints
will not validate a certificate on a server that was generated with a KeyLength under 1024, and the clients
will fail to connect to the server.
Procedure
1 On your Active Directory server, use the certutil command to publish the certificate to the
Enterprise NTAuth store.
For example: certutil -dspublish -f path_to_root_CA_cert NTAuthCA
2 On the Active Directory server, navigate to the Group Policy Management plug-in.
AD Version Navigation Path
Windows 2003 a Select Start > All Programs > Administrative Tools > Active Directory
Users and Computers.
b Right-click your domain and click Properties.
c On the Group Policy tab, click Open to open the Group Policy Management
plug-in.
d Right-click Default Domain Policy, and click Edit.
Windows 2008 a Select Start > Administrative Tools > Group Policy Management.
b Expand your domain, right-click Default Domain Policy, and click Edit.
Windows 2012R2 a Select Start > Administrative Tools > Group Policy Management.
b Expand your domain, right-click Default Domain Policy, and click Edit.
Windows 2016 a Select Start > Administrative Tools > Group Policy Management.
b Expand your domain, right-click Default Domain Policy, and click Edit.
3 Expand the Computer Configuration section and go to Windows Settings > Security Settings >
Public Key Policies.
4 Import the certificate.
Option Description
Root certificate a Right-click Trusted Root Certification Authorities and select Import.
b Follow the prompts in the wizard to import the root certificate (for example,
rootCA.cer) and click OK.
Intermediate certificate a Right-click Intermediate Certification Authorities and select Import.
b Follow the prompts in the wizard to import the intermediate certificate (for
example, intermediateCA.cer) and click OK.
5 Close the Group Policy window.
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