DNS NS Question
kcd at daimlerchrysler.com
Tue Nov 15 23:40:48 UTC 2005
Kevin Darcy wrote:
>>I have a query on how DNS resolves in regards to name servers (NS) records
>>can somebody please explain this to be by way of the following example:
>>Ok so given the following setup of a domain:
>>example.net. 172791 IN NS ns1.example.net.
>>example.net. 172791 IN NS ns2.example.net.
>>example.net. 172791 IN NS ns3.example.net.
>>If I am trying to resolve host1.example.net for example.
>>Does the DNS resolveer work like this.
>>Try ns1.example.net if there is no host found then it tries
>>ns2.example.net and so on. So it keeps working its way down until
>>one of the NS servers says it can Resolve the query?
>No, "no host found" implies that one of the nameservers actually gave a
>response to the effect that the query matched no name (or no records,
>which is subtly different) in the DNS database. Once a response is
>received by one of the nameservers, it is taken as definitive, since all
Oops, that should read "received from one of the nameservers, ...".
Sorry for the confusion.
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