[dns-operations] lowercasing of questions from recursor to auths?

Peter van Dijk peter.van.dijk at powerdns.com
Tue Feb 9 14:38:42 UTC 2016

Hello Ralf,

On 8 Feb 2016, at 16:11, Ralf Weber wrote:

>> My concrete question: can you imagine operational downsides to 
>> lowercasing all
>> questions sent to auths? Because I don’t see it, but we’ve gone 
>> 15 years
>> (longer for other implementations) preserving case so I need to be 
>> careful.
> Lets phrase it the other way. Why do you want to change a behaviour 
> that has work very well for all major implementations over the last 
> couple of decades? Operationally you should not change something 
> unless it's broken which this behaviour clearly not is.

Personally, because I feel lowercasing all questions will yield more 
consistency and avoids at least one bad actor (the criteo servers). I do 
share the sentiment of ‘not changing a good thing’. I’ve done the 
implementation of the lowercasing feature now for the user, but it is 
defaulting to ’do not touch anything’.

Thank you for the insights, everybody.

Kind regards,
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/

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