replicate a whole master
Victoria Risk
vicky at isc.org
Mon Sep 19 15:52:32 UTC 2016
> On Sep 19, 2016, at 8:40 AM, Tony Finch <dot at dotat.at> wrote:
>
> /dev/rob0 <rob0 at 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 <dot at dotat.at> http://dotat.at/ - I xn--zr8h punycode
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Victoria Risk
Internet Systems Consortium
vicky at isc.org
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