Authoritative answers from non-authoritative servers

[Cricket Liu]

> > They're probably running a BIND 8 name server that accepts
> > recursive queries.  BIND 8 name servers mark answers that
> > they "relay" directly from the authoritative name servers as
> > authoritative.  BIND 9 name servers mark the same answers
> > as non-authoritative.
> 
> Ah. A subsequent dig confirms that they no longer claim to be 
> authoritative
> when serving from their cache and the ttls start decreasing as expected.
> 
> Now I understand - thanks for the clarification.

You're welcome.

cricket

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