You can select the security protocols and cryptographic algorithms that are used to encrypt communications between Horizon Client and Horizon servers or between Horizon Client and the agent in the remote desktop.
These options are also used to encrypt the USB channel (communication between the USB service daemon and the agent).
With the default setting, cipher suites use 128- or 256-bit AES, remove anonymous DH algorithms, and then sort the current cipher list in order of encryption algorithm key length.
By default, TLS v1.0, TLS v1.1, and TLS v1.2 are enabled. SSL v2.0 and v3.0 are not supported.
If you configure a security protocol for Horizon Client that is not enabled on the View server to which the client connects, a TLS/SSL error occurs and the connection fails.
On the client system, you can use either configuration file properties or command-line options for these settings:
- To use configuration file properties, use the view.sslProtocolString and view.sslCipherString properties.
- To use command-line configuration options, use the --sslProtocolString and --sslCipherString options.
For more information, see Using the Horizon Client Command-Line Interface and Configuration Files and look up the property and option names in the table in Horizon Client Configuration Settings and Command-Line Options.