[Pdns-users] Recursor LUA - trigger additional lookups

[David]

On 2018-02-12 9:31 AM, Radosław Ejsmont wrote:
> Yeah, know that you can set it for each client (Linux/Windows/macOS). My problem is many mobile clients (iOS) where setting this up is impossible. And Netflix / Amazon / whatever becomes an issue... so network-wide solution would be cool!
> 

What sort of issue? Do you have a broken IPv6 network?

> Sent from my iPhone
> 
>> On 12 Feb 2018, at 11:48, Brian Candler <b.candler at pobox.com> wrote:
>>
>>> On 12/02/2018 10:32, Radoslaw Kamil Ejsmont wrote:
>>> My goal is to successfully resolve AAAA only for hosts that are IPv6 only and serve A only to dual-stack hosts.
>> I can't answer your question about doing this inside PDNS, but just wanted to mention that you can configure individual hosts to prefer IPv4 over IPv6 when both are available.
>>
>> In Linux this is done by configuring /etc/gai.conf, e.g. for Ubuntu just uncomment this line:
>>
>> precedence ::ffff:0:0/96  100
>>
>> I don't really do Windows, but I understand the corresponding feature is called "prefix policies":
>>
>> https://support.microsoft.com/en-us/help/929852/how-to-disable-ipv6-or-its-components-in-windows
>> https://sites.google.com/site/jrey42/Home/ipv6/prefixpolicies
>>
>> Regards,
>>
>> Brian.
>>
>>
>>
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