[dns-operations] resolv.conf and resolving IPv6-only domains/NSes
Zuleger, Holger, VF-DE
holger.zuleger at vodafone.com
Wed Nov 3 17:26:15 UTC 2010
> You are correct, whether my tool requests resolution via IPv4
> or IPv6 for
> onlyv6.com shouldn't matter as long as the queried resolver has IPv6
> So what I've learned is that if I want to resolve query
> v6-only domains,
> such as onlyv6.com, I had better make sure that the first DNS
> server in my
> resolv.conf has IPv6 connectivity. Even better, make sure
> all of them do.
If your client is ipv6-only then it doesn't make sense to
use an IPv4 resolver.
Additionally each of the ipv6 resolvers in your list *must* be
dual-stack, or need the help of an dual stack resolver (e.g. via
BINDs dual-stack-server command).
If the domain is a v6-only domain, at least the authoritative name
the domain have to be dual stack.
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