Definition - Authoritative

A DNS server is said to be authoritative for a domain name when it hosts the DNS records for that domain name.

An authoritative DNS server for a domain name is configured with a local DNS zone for the domain name and its sub-names.

Both the primary and the secondary DNS servers for a domain name are considered authoritative.

An authoritative DNS server for a domain name responds with "Authoritative Answers" for the domain - as indicated by the "AA" header flag set in responses.

 Comments
Gravatar
26 Apr 2022 14:58 UTC
Victoria Mason
Thanks for the clear definition. Never realized that the <i>AA</i> record actually had a meaning. Best wishes, Victoria
(Never published. Used for replies and to show your Gravatar icon. Never used for any other purpose.)
Connect