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July 21, 2026

Linux - Set Up Smart Card Authentication

For smart card authentication to a Linux desktop, you must configure the path to the root certificate signed by a certificate authority (CA).

Note: The Horizon Agent Direct-Connection Plug-In is supported on Linux desktops running Horizon Agent 2111 or later.

To configure the path to the root CA certificate, modify the /etc/nginx/conf.d/hznvadc.conf configuration file by uncommenting the lines under ###Enable user certificate(smartcard) authentication such that they appear as follows.

ssl_verify_client optional;
ssl_client_certificate /etc/omnissa/ssl/trustCerts.pem;

Copy the CA certificate to trustCerts.pem and place the certificate file in the /etc/omnissa/ssl/ directory.

For information on configuring smart card authentication to desktops running specific Linux distributions, see the Desktops and Applications in Omnissa Horizon 8 document.

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