On Oct 24, 2006, at 3:51 AM, Dave Crocker wrote:
Folks,
I have submitted a revised version of "DNS Scoped Data Through
Attribute Leaves", draft-crocker-dns-attrleaf-02.
It reflects the discussions that took place on the list about
version -01. I would, as usual, appreciate any comments folks
might have on this latest draft.
HTML and TXT are available at:
<http://bbiw.net/specifications/draft-crocker-dns-attrleaf-02.html>
<http://bbiw.net/specifications/draft-crocker-dns-attrleaf-02.txt>
Per the experimental RFC4408, there is neither an expectation nor
requirement any SPF related TXT RR use the "_spf" prefix. This
prefix is found in examples of continuation or secondary SPF
records. The prefix is declared within referencing SPF scripts and
can be _any_ prefix. Various invented prefixes are being used in
practice already. There are also other prefix examples not listed in
this draft, should the desire be to cover these examples. This RFC
also represents an extremely serious and significant DoS threat to
DNS. A better approach would not further entrench a highly hazardous
RFC, even in hopes this draft's examples somehow become normative.
-Doug
.
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