[dns-operations] 答复: 答复: DNS forwarder behavior on response with cname

Paul Vixie paul at redbarn.org
Fri Jan 4 01:38:54 UTC 2019

Dave Lawrence wrote:
> ...
> I'm fairly sure I have somewhere deep in my mail archives a message
> from Mark Andrews citing RFC 1034 3.6 as to the necessity of
> restarting the query.  This was in response to a suggestion that the
> restart should be skipped if the name was (apparently) in-bailiwick,
> and declining to make that change.

it's been observed many times, especially since the 2008 summer of fear, 
that you can't know that a sibling name isn't a zone cut, so the 
question of "is it in bailiwick" is nonsequitur. you can only know when 
one name is not in-bailiwick, not when it is.

P Vixie

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