TLSA-Records (Transport Layer Security Authentication)

TLSA records are used to specify the keys used in a domain's TLS servers.

The TLSA record identification (record name) is made of of 3 parts:

  • Port number: The port number that the TLS server listens on.

  • Protocol: The protocol used (udp, tcp, sctp, or user defined).

  • Server host name: Host name of the TLS server.

TLSA-records have the following data elements (see RFC below for details):

  • Certificate usage: A numeric value (0-255).

  • Selector: A numeric value (0-255).

  • Matching type: A numeric value (0-255).

  • Certificate association data: Hexadecimal.

To create a new TLSA-record, right-click a zone in the left list in the DNS Records window, and select "Other new record" from the pop-up menu.

This record type is defined in RFC6698.

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