Meng Weng Wong <mengwong(_at_)dumbo(_dot_)pobox(_dot_)com>:
On Fri, Oct 10, 2003 at 06:02:36PM -0400, Meng Weng Wong wrote:
|
| Here's what my altitude-addled brain was able to produce.
About 70% done here. Tomorrow I finish the library.
OK, now that I've seen it:
The underlying logic of SPF looks sound.
Directive syntax and semantics looks good. I especially like the fact
that the syntax can be extended in the future to handle policy attributes
we have not thought of yet.
Section 2.4.3 needs to specify that "ends with" means the name has to some
trailing set of segments, otherise some dimbulb is going to implement
it so that qux.bar.com matches qux.foobar.com
THE BIG ONE...the hack of using specially named subdomains and TXT has got to
go. I can't support that. It's unclean in a way that I feel certain
will get us in deep doo-doo someday. There are at least two bad
effects:
1. It muddles together host-namespace information (which is the only thing
that ought to be to the left of IN) with attribute information (which is
the only thing that ought to be over on the right).
2. It hijacks TXT. TXT is intended to be a comment attribute.
I strongly urge that the proposal be modified to use the obsolete RR
types MD and MF from RFC1035.
--
<a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>
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