Horizon Client and View Administrator communicate with a View Connection Server host over secure HTTPS connections. Information about the server certificate on View Connection Server is communicated to the client as part of the SSL handshake between client and server.
The initial Horizon Client connection, which is used for user authentication and remote desktop and application selection, is created when a user opens Horizon Client and provides a fully qualified domain name for the View Connection Server or security server host. The View Administrator connection is created when an administrator types the View Administrator URL into a Web browser.
A default SSL server certificate is generated during View Connection Server installation. By default, SSL clients are presented with this certificate when they visit a secure page such as View Administrator.
You can use the default certificate for testing, but you should replace it with your own certificate as soon as possible. The default certificate is not signed by a commercial Certificate Authority (CA). Use of noncertified certificates can allow untrusted parties to intercept traffic by masquerading as your server.