Frequently Asked Questions on Server Name Indication(SNI)
Which protocols support SNI?
Server Name Indication (SNI) is a TLS protocol addon. At the beginning of the TLS handshake, it enables a client or browser to specify the hostname it is attempting to connect to. As a result, the server can display several certificates on the same port and IP address.
Do all web servers and browsers support SNI?
A TLS protocol enhancement called Server Name Indication enables the hosting of several SSL certificates at the same IP address. Although most contemporary browsers use it these days, older ones could not support SNI!
Are there any compatibility issues with SNI?
Domain fronting is limited in its compatibility since it deviates from the standard that defines SNI itself. Several services reject connections with domain-fronted SNI as invalid, verifying that the SNI host matches the host specified in the HTTP header.
What is Server Name Indication (SNI)?
All that a server name is is the computer’s name. Unless the server hosts a single domain and the server name is the same as the domain name, this name is not displayed to end users for web servers. An addition to the Transport Layer Security computer networking protocol is called Server Name Indication, which enables the client to provide the hostname it is attempting to connect to at the outset of the handshaking procedure.