Mapping and Variants

Andrew Sullivan ajs at
Mon Mar 9 22:56:54 CET 2009

On Mon, Mar 09, 2009 at 02:49:01PM -0700, Tina Dam wrote:
> They will have to be treated as aliased TLDs - in other words as
> "DNAME'd" if DNAME had functioned in the root.

> As far as I have understood this does not work, but please correct me if I am wrong.

Why not?  DNAME cannot alias the same record: you couldn't DNAME
$somelabel to .com and expect someone to be able to reach
http://$somelabel.  But I'd like to believe that we are not yet to the
point where we are putting A records for the top level domains into
the parent's zone file.  DNAME can't alias the root zone _itself_, of
course, but that has more to do with the fact that there's nowhere to
alias it to.  Elephants all the way down, and all that.


Andrew Sullivan
ajs at
Shinkuro, Inc.

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