On Wed, 15 Sep 2004, william(at)elan.net wrote:
There are also some issues with RFC2317 (which is in my opinion just a
bad RFC that instead of proposing to do futher reverse subdelegation
with NS, tried to get by with CNAMEs - bad, that means it will only work
for PTR records and not anything else that might be in in-addr).
What makes you think that? To extend an example from RFC 2317:
$ORIGIN 2.0.192.in-addr.arpa.
@ IN SOA my-ns.my.domain. hostmaster.my.domain. (...)
;...
0/25 NS ns.A.domain.
1 CNAME 1.0/25.2.0.192.in-addr.arpa.
$ORIGIN 0/25.2.0.192.in-addr.arpa.
@ IN SOA ns.A.domain. hostmaster.A.domain. (...)
@ NS ns.A.domain.
1 PTR host1.A.domain.
TXT "ASRG.MTA=yes"
The CNAME refers to the whole RR set, not any particular RR type.
Tony.
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