Re: RFC 5006 status

[Gert Doering <gert@space.net>]

Hi,

On Mon, Mar 22, 2010 at 03:49:54PM -0500, Hemant Singh (shemant) wrote:
> The simple problem is that what if a host queries two DNS servers and 
> gets back two different responses - which one does the client use?  

Typically, hosts don't do that today.  They query the first DNS recursor
in their list (=priority) and if that one is too slow, they will go and
query the next one.

But in any case, if a network admin announces the addresses of two
different DNS resolvers that return *different* answers (and only one
of them is working), well, I'd consider that configuration broken by
human error.

> RFC5006 has further inertia towards becoming a
> standard because now DNS64 is coming about and we have one more systems
> one will screw up.

What does a specific DNS translation technology have anything to do with
the method that we use to tell the clients which DNS recursor to use?

Gert Doering
        -- NetMaster
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