replicate a whole master

[Victoria Risk]

> 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
> Tyne, West Dogger: Northerly 4 or 5. Slight. Occasional rain. Moderate or
> good, occasionally poor.
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Victoria Risk
Internet Systems Consortium
vicky at isc.org




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