At Wed, 14 Oct 2009 11:48:43 -0700 (PDT), Aaron Hopkins <[email protected]> wrote: Subject: Re: [Unbound-users] NOTIFY implementation to unbound > > However, without the ability to check SOA serial numbers on everything in > the cache, there's a race condition with using NOTIFY like this.
No, not really -- there's no race condition possible.
A nameserver must only send NOTIFY to other interested servers _after_
it has updated its local copy of the zone.
Any new queries received after the zone has been updated will therefore
be answered from the up-to-date records, just as you would expect.
A caching server such as Unbound receiving a NOTIFY for a zone need only
flush all records matching that zone and then continue on as normal.
--
Greg A. Woods
+1 416 218-0098 VE3TCP RoboHack <[email protected]>
Planix, Inc. <[email protected]> Secrets of the Weird <[email protected]>
pgp2Z46kFqVFK.pgp
Description: PGP signature
_______________________________________________ Unbound-users mailing list [email protected] http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users
