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Configure Advanced TLS/SSL Options
You can select the security protocols and cryptographic algorithms that are used to encrypt communications
between Horizon Client and Horizon servers and between Horizon Client and the agent in the remote
desktop.
By default, TLSv1.0, TLSv1.1, and TLSv1.2 are enabled. SSL v2.0 and 3.0 are not supported. The default
cipher control string is "!aNULL:kECDH+AESGCM:ECDH+AESGCM:RSA+AESGCM:kECDH+AES:ECDH
+AES:RSA+AES".
If you congure a security protocol for Horizon Client that is not enabled on the Horizon server to which the
client connects, a TLS/SSL error occurs and the connection fails.
For information about conguring the security protocols that are accepted by Connection Server instances,
see the View Security document.
Procedure
1 Open  and tap Security options.
If you are connected to a remote desktop or application in full-screen mode, tap the Horizon Client
Tools radial menu icon and tap the gear icon to access . If you are not using full-screen mode,
 is in the menu in the upper right corner of the Horizon Client toolbar. If you are not connected
to a remote desktop or application, tap the gear icon in the upper right corner of the Horizon Client
screen.
2 Tap Advanced SSL Options.
3 Make sure that Use Default  is unchecked.
4 To enable or disable a security protocol, tap the check box next to the security protocol name.
5 To change the cipher control string, replace the default string.
6 (Optional) If you need to revert to the default seings, tap to select the Use Default  option.
7 Tap OK to save your changes.
Your changes take eect the next time you connect to the server.
Configure VMware Blast Options
You can congure H.264 decoding and network protocol options for remote desktop and application
sessions that use the VMware Blast display protocol.
Prerequisites
This feature requires Horizon Agent 7.0 or later.
Procedure
1 Open  and tap VMware Blast.
If you are connected to a remote desktop or application in full-screen mode, tap the Horizon Client
Tools radial menu icon and tap the gear icon to access . If you are not using full-screen mode,
 is in the menu in the upper right corner of the Horizon Client toolbar. If you are not connected
to a remote desktop or application, tap the gear icon in the upper right corner of the Horizon Client
screen.
Chapter 1 Setup and Installation
VMware, Inc. 17