TLS extension for serve multiple HTTPS sites at the same IP address with different certificates
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.[1] The extension allows a server to present one of multiple possible certificates on the same IP address and TCP port number and hence allows multiple secure (HTTPS) websites (or any other service over TLS) to be served by the same IP address without requiring all those sites to use the same certificate. It is the conceptual equivalent to HTTP/1.1 name-based virtual hosting, but for HTTPS. This also allows a proxy to forward client traffic to the right server during TLS/SSL handshake. The desired hostname is not encrypted in the original SNI extension, so an eavesdropper can see which site is being requested. The SNI extension was specified in 2003 in RFC 3546
^Blake-Wilson, Simon; Nystrom, Magnus; Hopwood, David; Mikkelsen, Jan; Wright, Tim (June 2003). "Server Name ssl_ocsp_responderIndication". Transport Layer Security (TLS) Extensions. IETF. p. 8. sec. 3.1. doi:10.17487/RFC3546. ISSN 2070-1721. RFC 3546.
and 25 Related for: Server Name Indication information
ServerNameIndication (SNI) is an extension to the Transport Layer Security (TLS) computer networking protocol by which a client indicates which hostname...
feasible to use name-based virtual hosting with HTTPS. A solution called ServerNameIndication (SNI) exists, which sends the hostname to the server before encrypting...
bindings on Central Administration web application Support for ServerNameIndication (SNI) for host header bindings Support for changing web application...
identifies the domain name being referenced, for instance by using the HTTP request header field Host:, or ServerNameIndication. Critics often claim...
using soft or hard affinity and more. WebSocket Protocol Support ServerNameIndication (SNI): SNI is an extension to Transport Layer Security, which allows...
added. To provide the servername, RFC 4366 Transport Layer Security (TLS) Extensions allow clients to include a ServerNameIndication extension (SNI) in...
for wildcards. There is an extension to TLS called ServerNameIndication, that presents the name at the start of the handshake to circumvent that issue...
A root nameserver is a nameserver for the root zone of the Domain Name System (DNS) of the Internet. It directly answers requests for records in the...
that HTTPS implementations without ServerNameIndication (SNI) support require a separate IP address per DNS name, and all HTTPS implementations require...
Industrial Classification, a Swedish economic classification system ServerNameIndication, an extension to the TLS computer networking protocol Scripps Networks...
2008. Android 1.0 and 1.1 were not released under specific code names. The code names "Astro Boy" and "Bender" were tagged internally on some of the early...
request, the destination domain name appears in three relevant places: the DNS query, the TLS ServerNameIndication (SNI) extension, and the HTTPS Host...
may delegate authority over subdomains of their allocated name space to other nameservers. This mechanism provides distributed and fault-tolerant service...
Amazon S3. Common TLS extensions supported by this software are ServerNameIndication, Application-Layer Protocol Negotiation, and Online Certificate...
Microsoft SQL Server.) Until 1994, Microsoft's SQL Server carried three Sybase copyright notices as an indication of its origin. SQL Server 7.0 was a major...
Commission began blocking banned websites based on filtering of ServerNameIndication. The KCC said their focus was "on blocking sites with child pornography...
for backward compatibility reasons even though SSL 2.0 is not supported. Server-side implementation of the SSL/TLS protocol still supports processing of...
standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages...
Christopher; Rescorla, Eric; Sullivan, Nick (June 2020). "Encrypted ServerNameIndication for TLS 1.3". IETF. Archived from the original on 16 July 2020....
on disk already compressed so that web server can send that file directly to the network with the only indication that its content is compressed) or not...
support extensions as outlined in RFC 3546, most notable of which is ServerNameIndication support. Internet Explorer 7 additionally features an update to...
100 ms or more. The protocol is usually described in terms of a client–server model, but can as easily be used in peer-to-peer relationships where both...
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