Can NS record point to CNAME record ?

[Stephane Bortzmeyer]

On Tue, Jun 21, 2005 at 02:13:55PM -0400,
 Slawomir Orlowski (CYMPAK) <sorlowski at cympak.com> wrote 
 a message of 18 lines which said:

> So can I do that:
> 
> @           IN    NS         ns1.mydomain.com.

No, the right hand side of a NS (or a MX) cannot be an alias. It has
to be the canonical name. Your setup may work but break in mysterious
ways with some resolvers.

Why not:

@           IN    NS         ns1.mydomain.com.
diamond  IN    A           198.138.227.66
ns1         IN    A           198.138.227.66
www       IN    CNAME  diamond

(or "diamond IN CNAME ns1")