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REVERSE DNS Practices.

Slighty related...

Can people please post their recommended reverse dns naming conventions for a small ISP with growth and scalability in mind. 
I already have one drawn up, but I would like to contrast and compare :D


On 21 Mar 2009 10:32:30 -0000, John Levine <johnl at iecc.com> wrote:
>> I want to ask some folks out there that maintain reverse DNS queries
>>of their respective IP blocks. I want to know if there is a need for
>>me to contact my upstream provider. I am in charge of 2 /24's under
>>LACNIC. I've already registered my DNS servers on LACNIC. but for some
>>weird reason it's not owning reverse resolves. any tips would be
>>gladly appreciated.
> The RIRs don't maintain rDNS for you.  You'll have to trace the
> delegations downward from in-addr.arpa, find out who's handling your
> /24's, and contact them to get them to delegate your chunks to you.
> R's,
> John