wildcard cnames

[Kevin Darcy]

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