FW: Delegating reverse DNS to a customer
kcd at chrysler.com
Tue Aug 18 18:32:42 UTC 2009
bsfinkel at anl.gov wrote:
> On Tue, Aug 18, 2009 at 8:31 AM, Tim Huffman<Tim at bobbroadband.com>
>> We're a smallish (but growing) ISP, and we've been asked by one of our
>> customers to delegate reverse DNS for 18.104.22.168/24 to their DNS servers,
>> ns1.emns.com - ns4.emns.com. Unfortunately, we've never had to delegate DNS
>> to a customer before, and we're having problems getting it to work.
>> We're running BIND 9.5.1 on Fedora.
> In your zone
> 251.250.63.in-addr.arpa (If you do not have a zone, create it.)
> place the following four NS records as delegation records:
> @ IN NS ns1.emns.com.
> IN NS ns2.emns.com.
> IN NS ns3.emns.com.
> IN NS ns4.emns.com.
> I believe that that will delegate the /24 to those servers from your
> servers. The delegation could occur at the parent level, but you
> do not control the parent
No, you can't do a "sideways" delegation like that.
The correct solution, as stated elsewhere, is to get
251.250.63.in-addr.arpa delegated directly from ARIN to the customer.
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