IPv6 rDNS
Sven Olaf Kamphuis
sven at cb3rob.net
Tue Nov 2 17:42:53 UTC 2010
would be interested in anybody other
than IRC operators who feel they still require forward and reverse DNS
to match,
SMTP, email-2 (don't ask ;), and preferably (though not required) anything
that has to do with /bin/login on *nix systems (as it shows the reverse
dns host name in who and w and last unless specified otherwise).
although smtp -itself- does note require it to match, the various
"anti-spam" things -do-.
On Tue, 2 Nov 2010, David Freedman wrote:
> Lee Howard wrote:
>> Since there's a thread here, I'll mention rDNS for residential users.
>>
>> I'm not sure there's consensus about whether forward and reverse ought
>> to match (how strong a "should" is that?). I know you can't populate
>> every potential record in a reverse zone, as in IPv4. You can generate
>> records on the fly, or just not provide PTRs.
>>
>> I've described options in draft-howard-isp-ip6rdns-04 but I'm not sure
>> enough people care whether it's published as an RFC. Discuss on
>> IETF's dnsop list.
>> https://www.ietf.org/mailman/listinfo/dnsop
>>
>
> Presuming that signed wildcarding in ip6.arpa is achieveable under
> DNSSEC (use of the LABELS field), would be interested in anybody other
> than IRC operators who feel they still require forward and reverse DNS
> to match,
>
> I feel this preferable than either not providing PTRs or dynamically
> creating them on query (which would be cool but another headache DoS
> vector to manage well)
>
> Thoughts?
>
>
> --
>
>
> David Freedman
> Group Network Engineering
> Claranet Group
>
>
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