Dual-stack BIND resolver behaviour

[Sherin George]

Hi guys,

i am not sure whether this is the right place to ask this question,
but I sincerely feel that my question matches with ongoing discussion
in this thread. If you think that I have hijacked thread, I am
extremely sorry.

Well, my questions are,

1. Can a domain(eg: example.com) have both A reocrd & AAAA record
2. If so, which website will be displayed when accessed from a client
which got both IPv4 & IPV6 connectivity

--
Regards,
Sherin



On Mon, May 16, 2011 at 6:28 PM,  <lst_hoe02 at kwsoft.de> wrote:
> Zitat von Anand Buddhdev <anandb at ripe.net>:
>
>> On 16/05/2011 14:11, Dennis Perisa wrote:
>>
>>> Hi folks,
>>>
>>> We are looking to dual-stack our 9.7.3 DNS resolvers and I had a
>>> question about BIND's behaviour in a dual-stack configuration.
>>>
>>> Assuming the resolver's cache is empty, will a query that arrives on
>>> an IPv6 socket always result in an outgoing query to a root server's
>>> IPv6 address? I have the same question for IPv4 queries.
>>
>> Hi Dennis,
>>
>> There's no relation between incoming recursive queries, and the outgoing
>> queries BIND makes to look for answers.
>>
>> Whether BIND contacts the IPv4 or IPv6 address of a server (including
>> the root servers) depends on the latency to that server.
>
> Does the latency apply per IP or per Hostname? If per Hostname the IPv6
> address will be prefered in case the root servers are reachable by both IPv4
> and IPv6, no? Also first connection will be tried with IPv6 on most OS, no?
>
> Regards
>
> Andreas
>
>
> _______________________________________________
> bind-users mailing list
> bind-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/bind-users
>