wildcard cnames
Kevin Darcy
kcd at daimlerchrysler.com
Tue Apr 2 23:33:58 UTC 2002
bert hubert wrote:
> In article <a8cnl5$bhr at pub3.rc.vix.com>, Barry Margolin wrote:
>
> >>Does anybody know of a legitimate use of wildcard CNAME records?
> >
> > One of our customers has a bunch of domains that are all of the form:
> >
> > @ A x.x.x.x
> > * CNAME @
>
> Ok, this one does not add value and is exactly equivalent to
> * IN A x.x.x.x
Strictly speaking, the two are not "exactly equivalent". A query which is not of
type A (e.g. MX, SRV, TXT) will be matched by the wildcard in the first
configuration, but not in the second.
- Kevin
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