RFC 4366:Transport Layer Security (TLS) Extensions
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DNS


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... } ServerNameList; Currently, the only server names supported are DNS hostnames; however, this does not imply any dependency of TLS on DNS ...
... DNS hostnames; however, this does not imply any dependency of TLS on DNS, and other name types may be added in the future (by an RFC that updates this document). TLS ...
... pass the names and types to the application. "HostName" contains the fully qualified DNS hostname of the server, as understood by the client. The hostname is represented as a byte ...


... subject to localization. Domain Name System (DNS) hostnames are encoded using UTF-8. If future extensions use text strings, then ...



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