> On Sep 19, 2016, at 8:40 AM, Tony Finch <d...@dotat.at> wrote: > > /dev/rob0 <r...@gmx.co.uk> wrote: >> >> If you're thinking that you can do this replication to improve DNS >> performance, you're right, it will do that. But it certainly will >> not scale (if it's even possible to get axfr/ixfr), and it won't >> handle modern CDN systems properly. > > BIND 9.10 and later will keep popular domains in the cache by prefetching > them if they are looked up shortly before they will expire. So trying to > keep local copies of popular zones is less helpful than it used to be. > > (Unfortunately the prefetch option isn't mentioned in the HISTORY file so > I had to dig through the CHANGES to remind myself when it was introduced!) >
We do have a matrix that shows when significant new features were added. Of course not every change is on there, but pre-fetch is. https://kb.isc.org/article/AA-01310/109/BIND9-Significant-Features-Matrix.html > Tony. > -- > f.anthony.n.finch <d...@dotat.at> http://dotat.at/ - I xn--zr8h punycode > Tyne, West Dogger: Northerly 4 or 5. Slight. Occasional rain. Moderate or > good, occasionally poor. > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users Victoria Risk Internet Systems Consortium vi...@isc.org
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