Henrik Nordström wrote:
> tor 2008-01-10 klockan 22:45 +1300 skrev Amos Jeffries:
>
>> query 1: AAAA
>> response: CNAME + NX additional
>> result: was returns no-results shortcut in DNS.
>> (identical if A returns CNAME-only)
>
> You can only shortcut if you get a NXDOMAIN, not when you get a positive
> response but with no answer of the requested type.
>
> NXDOMAIN means the node do not exists. No point in continuing after
> this.
>
> No answer of the requested type means there is no record of the
> requested type in the node (including nodes recursed int) but the node
> itself exists so it's meaningful to continue querying for other
> interesting record types. (i.e. A)
>
> Regards
> Henrik
I know. Twas not my shortcut. I was just far too trusting that it was
still right.
Amos
-- Please use Squid 2.6STABLE17 or 3.0STABLE1. There are serious security advisories out on all earlier releases.Received on Thu Jan 10 2008 - 03:38:09 MST
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