Re: DNS goofups galore...

H. Peter Anvin (hpa@transmeta.com)
Thu, 08 Feb 2001 16:01:30 -0800

>
> > Wouldn't that be true for any CNAME anyway?
>
> That's the point...
>
> In other words, you do a lookup, you start with a primary lookup
> and then possibly a second lookup to resolve an MX or CNAME. It's only
> the MX that points to a CNAME that results in yet another lookup. An
> MX pointing to a CNAME is almost (almost, but not quite) as bad as a
> CNAME pointing to a CNAME.
>

There is no reducibility problem for MX -> CNAME, unlike the CNAME ->
CNAME case.

Please explain how there is any different between an CNAME or MX pointing
to an A record in a different SOA versus an MX pointing to a CNAME
pointing to an A record where at least one pair is local (same SOA).

-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
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