On Thu, 2004-04-01 at 13:38 -0600, Greg Hewgill wrote:
On Thu, Apr 01, 2004 at 07:31:34PM +0200, Ernesto Baschny wrote:
reverse (just one possible):
This is a bit off topic, but I've seen multiple PTR records for one ip
address,
for example 64.251.192.200 has 245 different PTR records. I can't help but
think this is violating some established practice somewhere.
Read §10.2 of RFC2181 again, more carefully this time:
10.2. PTR records
Confusion about canonical names has lead to a belief that a PTR
record should have exactly one RR in its RRSet. This is incorrect,
the relevant section of RFC1034 (section 3.6.2) indicates that the
value of a PTR record should be a canonical name. That is, it should
not be an alias. There is no implication in that section that only
one PTR record is permitted for a name. No such restriction should
be inferred.
--
dwmw2