Thanks for the reference, I had four -00 drafts to get in before the cutoff. I
have not figured out how to get the references to work in xml2rfc.
Sent from my GoodLink Wireless Handheld (www.good.com)
-----Original Message-----
From: Douglas Otis [mailto:dotis(_at_)mail-abuse(_dot_)org]
Sent: Friday, June 29, 2007 04:49 PM Pacific Standard Time
To: Hallam-Baker, Phillip
Cc: DKIM WG
Subject: Re: [ietf-dkim] FW: draft-hallambaker-xptr-00
On Jun 29, 2007, at 11:12 AM, Hallam-Baker, Phillip wrote:
I just submitted the attached as a personal Internet draft. It
describes the use of the XPTR record to provide generalized
discovery of wildcarded prefix records.
It seems that you should have included RFC 4592 as an informational
reference. This reference provides more illustrative examples of
when wildcard synthesis is blocked when considering XPTR deployment.
The alternative to XPTR could be consistent use of discovery
records. This might be either SRV or MX records, for example. Valid
non-existence could then be established in one fewer queries without
wildcards or causing zones to expand.
Wildcards might also aid those attempting to stage some type of DNS
based DDoS attack, which is fairly common. A wildcard permits
queries for RRs having the largest possible label and never answered
from cache. Add to that a scheme that even makes three additional
queries based upon the initial query, and things get fairly depressing.
-Doug
_______________________________________________
NOTE WELL: This list operates according to
http://mipassoc.org/dkim/ietf-list-rules.html