SPF records for subdomain

[Len Conrad]

>While we're at it, why not ban automobiles

nobody is recommending banning anything.  your straw man, you can knock it 
down.

>since most drivers have an
>accident at some point in their lives?

thanks for supporting my point, since most CNAME users "have a
(CNAME) accident at some point in their lives" for a CNAME whose use was 
not required.

>The solution to the "CNAME problem" is education and due care

yawn, who can argue with motherhood?   If education and due care were 
widespread, this mailing list wouldn't have so much traffic.

>not just trying to will the record type out of existence.

another straw man. have at it.

>There are *many*
>situations in which CNAMEs are the preferred way to do things, classless
>in-addr delegation being only the best known example...

try to stay on topic, and stop attacking gratuitously.

My guess is that there are many more CNAMEs used simply because the zone 
admin said "oops, I don't have any CNAMEs, yet. I better complete my 
checkbox thinking. (no education, no due care) boom!", a situation that is 
avoidable by avoiding CNAMEs unless necessary, and only with "due education 
and care".

CNAMEs offer just enough abstraction and dissociation to send the majority 
of uneducated, careless zone admins driving into a ditch (to say nothing of 
the cases where the CNAME rdata field contains a non-local domain name on 
some non-local DNS).

CNAMEs don't kill zones, zone administrators do.

My "recommendation" (not a ban, no willing) of avoiding CNAMEs is part of 
my educational advice, ie, use CNAMEs with education and care, AND avoid 
where unnecessary.

Len


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