In article <m1fkrck-0000...@stereo.hq.phicoh.net> you write:
>I think there is a big difference between distributing the root zone and
>distributing a few 'local' zones.
>
>In the first case you need something that is massively scalable.

Fortunately, Cloudflare, Edgecast, Limelight, Azure, and Akamai are
only a phone call away.  That problem is pretty thoroughly solved.  Whether
you'd want to use them to distribute copies of root or TLD files is more of
a political than a technical question.

>In the second case, just create a tar file with a zone file and a hash, put
>it up on a web server and the problem is solved. Verifying the contents of a
>file is not exactly a new problem. 

It's not a new problem but it's not one we've addressed very well for
the DNS.  My DNS setup signs the zones and then uses rsync to
distribute the zone files, which I don't think is unusual.  I assume
that rsync doesn't scramble the zones, but it'd be enough of a pain to
create and distribute detached signatures that I don't.  If the signer
added ZONEMD at signing time which the servers could check before
using the zones, I think that would be useful.

R's,
John

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