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March 16, 2026

Install a CA-signed Certificate for BlastServer

By default, the Horizon Agent for Linux installer generates a self-signed certificate for the BlastServer daemon, which handles communications with clients using the Blast display protocol. To comply with industry or security regulations, you can replace the self-signed certificate for BlastServer with a certificate that is signed by a Certificate Authority (CA).

  • When the Blast Security Gateway is not enabled on the Horizon Connection Server, BlastServer presents the default self-signed certificate to the browser that uses HTML Access to connect to the Linux desktop.
  • When the Blast Security Gateway is enabled on the Horizon Connection Server, the Blast Security Gateway presents its certificate to the browser.

To replace the default self-signed certificate for BlastServer with a CA-signed certificate, complete the following steps.

Procedure

  1. Add the private key and the CA-signed certificate to ssl.

    1. Rename the private key to rui.key and the certificate to rui.crt.

    2. Set read and executable permissions on ssl.

    3. Copy rui.key and rui.crt to ssl.

    4. Remove executable permissions on ssl.

  2. Install the root and intermediate CA certificates into the Linux OS Certificate Authority store.

    For information about additional system settings that must be changed to support the CA certificate chain, refer to the documentation for your Linux distribution.

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