What Is Sni Used For

Server Name Indication (SNI) allows the server to safely host multiple TLS Certificates for multiple sites, all under a single IP address. It adds the hostname of the server (website) in the TLS handshake as an extension in the CLIENT HELLO message.

What is SNI in protocol layer?

Server Name Indication (SNI) is an extension to the Transport Layer Security (TLS) computer networking protocol by which a client indicates which hostname it is attempting to connect to at the start of the handshaking process.

How do you set up SNI?

1. Add SSL virtual server. From NetScaler GUI, navigate to Traffic Management > Load Balancing > Virtual Servers > Add. …
2. Enable SNI feature on the SSL virtual server. …
3. Bind SNI certificate to SSL virtual server.