On 5/22/2014 8:05 AM, Ned Freed wrote:
Over in DNSOP the usual arguments about CNAME and domain name variants
are being rerun. (Short summary: too many people believe that
variants can be made "the same" purely within the DNS, because they
don't understand the problem.)
One of the harder issues is application configuration.
...
So is this a new idea?
For i18n? Maybe. For email?
...
It doesn't work well at all, in part because the DNS is a lousy choice for
such
information operationally, but mostly because in practice domains require much
richer semantics:
...
The DNS just isn't flexible enough.
...
I've never seen a writeup of the issues anywhere.
John's opening classes this as a generic problem.
Seems like what is needed is a careful casting of the kinds of
functional requirements people often make, here, and then a careful
explanation of the reasons the DNS is a poor venue for satisfying them.
So, help the read to "understand the problem" and then to understand how
the "DNS just isn't flexible enough".
"DNS Name-Mapping Considered Harmful?" (No, I'm don't think that's the
right title; just trying to vector the direction.)
For FUSSP, we have the benefit of Cory Doctorow's squib. Given it's
form, it might be odd that it's useful, but still, it helps.
Sounds like we need a similar place to point to, for mis-applications of
the DNS.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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