nanog mailing list archives

Re: Reverse DNS RFCs and Recommendations


From: Mark Andrews <marka () isc org>
Date: Thu, 07 Nov 2013 09:29:03 +1100


In message <5964ADA4-8FCF-4FCE-9E64-7474CCAE57F2 () consultant com>, Cutler James R writes:
Dynamic DNS providers will undoubtably endeavor to make money from AAAA
and SRV entries for publicly-reachable services in SOHO and home
networks. Dynamic DNS providers are normally not delegated authority to
provide PTR records for ISP managed addresses, making provision of
complementary AAAA and PTR records highly unlikely.

Because of the cost of scaling and delegation issues I agree with Jason
and see no compelling business case for rDNS services for SOHO or
residential users.

Did you BOTHER TO READ the draft before commenting as the comments
imply that you haven't.  Nothing in the draft is more difficult
than is what is already being done inside enterprises networks today
every single minute of the day.

Enterprise DHCP servers construct DNS PTR records and add them to
the DNS using TSIG signed UPDATE requests.  They do it at one per
machine.

This is DHCP servers constucting a DNS KEY record and adding it to
the DNS using TSIG signed UPDATE requests.  The amount is ONE per
customer.  ISP's already support a PTR record per customer so your
scale arguement is blown out of the water.  This is draft addresses
the delegation issue by automating it so that any CPE device from
any manufacture can perform the delegation without humans being
involved.

Mark

It's dead,
      Jim

James R. Cutler
james.cutler () consultant com

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka () isc org


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