> > I just compared the root zone as RedHat shipped it on Fri 07 Sep 2001, > > with the root zone as published on root-servers.org, and only B and J > > are different. So even using a 6 year old root zone will work fine in > > That is the 'hints' file - the discussion is about the full root zone as > found on rs.internic.net, which has changed significantly over the years.
I think Paul's statement tells us that any update mechanisms depend on operator interaction doesn't work rather than "root zone" or "hint" thing. If a caching server has the following functionality, the idea of "local copy" may work: - checks periodically (once in 86400sec?) if the zone has been updated recently - download the zone with an automated process (question: what protocol to be used? from where?) As the number of working caching server is huge, we may also need to ask the caching server implementations which may not be straightforward: - checks how many queries sent to the root servers in past 86400? sec - goes into local copy mode if the count exceeds threshold value - it also needs to identify if the query can be resolved with its regular cached record or with the local copy so that it can return back to non-local copy mode - if transfer didn't succeded in past 172800? sec, goes back to non-local copy mode -- Akira Kato, WIDE Project _______________________________________________ DNSOP mailing list [email protected] https://www1.ietf.org/mailman/listinfo/dnsop
