Server Name Indication (SNI) Requirement

The Server Name Indication (SNI) feature allows  administrators to use multiple server  certificates and ports  for the same IP address. This allows  multiple secure  (HTTPS) websites (or any other  Service over SSL) to be served off the same IP address without requiring all those sites to use the same certificate.

Internet Explorer 7 or later.

Windows Vista or higher.

SNI is not supported in any  Internet Explorer version on Windows XP or Windows Server 2003 because SNI depends upon the SChan- nel system component shipped with  Windows Vista.

Mozilla Firefox 2.0 or later

Opera 8.0 (2005) or later (the TLS 1.1 protocol must  be enabled) Opera Mobile at least version 10.1 beta on Android

Google Chrome (Vista or higher; XP on Chrome 6 or newer [9] OS X 10.5.7 or higher on Chrome 5.0.342.1 or newer)

Safari 3.0 or later (Mac OS X 10.5.6 or higher and Windows Vista or higher)

Administrator may require configuring Fallback  SSL certificate if any of the users have old web browsers that do not support Server Name Indication. See Configure Fallback SSL Certificate article to learn how to configure the Fallback  SSL certificate feature.