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Re: Last Call comment on draft-weiler-dnssec-dlv-iana-00.txt

2007-08-29 16:45:47
Mark,

On Aug 29, 2007, at 4:23 PM, Mark Andrews wrote:
If the root gets signed and you remove the DLV stuff, won't you break
any caching resolver that still has the DLV trust anchor configured?
        No.  Please re-read the quoted paragraph.  The root's DLV
        will be there.

Please re-read my question.


        You only need DLV records where there is a missing link in the
        trust chain.  If you have "." you don't need a DLV for "se" as
        there will be a DS for "se" in the root zone.

Perhaps surprisingly, I understand this.

My question, somewhat expanded, is:

If you configure a trust anchor for "the" DLV registry and at some point in time in the future, that DLV registry ceases to function _and you have not changed the trust anchor configuration_, won't validation fail?

The point of this question:

If you start mucking about with production services that require configuration on the part of system administrators (particularly in the somewhat arcane world of DNSSEC trust anchors), it can become quite difficult to stop that production service without breaking stuff. Is this a place we want to go for a temporary hack?

Thanks,
-drc


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