At Wed, 14 Oct 2009 11:48:43 -0700 (PDT), Aaron Hopkins <lists at die.net> 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 <woods at robohack.ca> Planix, Inc. <woods at planix.com> Secrets of the Weird <woods at weird.com> -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 186 bytes Desc: not available URL: <http://unbound.nlnetlabs.nl/pipermail/unbound-users/attachments/20091019/17b6bc36/attachment.pgp>