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Re: provisioning software, was DNS RRTYPEs, the difficulty with

2012-03-04 22:34:02
Hey, if people don't like the restrictions of the TXT RR, have I got
an answer for you!
See http://tools.ietf.org/html/draft-ietf-dnsind-kitchen-sink-02
A little out of data but gives you a wide variety of formats :-)

Thanks,
Donald
=============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 155 Beaver Street, Milford, MA 01757 USA
 d3e3e3(_at_)gmail(_dot_)com



On Sat, Mar 3, 2012 at 11:39 AM, Hector <sant9442(_at_)gmail(_dot_)com> wrote:
� wrote:

On 3 mar 2012, at 16:56, ned+ietf(_at_)mauve(_dot_)mrochek(_dot_)com wrote:

Doubtful. If a record needs to have, say, a priority field, or a port
number,
given the existence of MX, SRV, and various other RRs it's going to be
very
difficult for the designers of said field to argue that that should be
done as
ASCII text that has to be parsed out to use.


Agree with you but too many people today "just" program in perl och python
where the parsing is just a cast or similar, and they do not understand this
argument of yours -- which I once again completely stand behind myself.


The original version of Sender-ID (Caller ID Policy) was an XML version of
SPF. In fact, the experimental record still exist:

  nslookup -query=txt _ep.hotmail.com

  "<ep xmlns='http://ms.net/1' testing='true'>
   <out><m><indirect>list1._ep.hotmail.com</indirect>
   <indirect>list2._ep.hotmail.com</indirect>
   <indirect>list3._ep.hotmail.com</indirect></m></out></ep>"

It was introductions like this that raised eyebrows and the need to include
a new RR type with the simpler language SPF TXT fallback for SPF and
SENDER-ID.

If TXT becomes the acceptable norm, than perhaps the XML format cane easily
be reconsidered for a DNS TXT storage with a common XML I/O construct. :(

--
HLS

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