On 28 Nov 2019, at 13:22, Ron Varburg via Unbound-users wrote:

>  I think, though I haven't checked, that:
> 1. IDN is designed so that each byte, on 8 bit boundaries, would look like a 
> printable ASCII character.

Correct, and this is called A-Label which can be converted to and from a 
U-Label without any loss.

> 2. Therefore, any DNS software would support it out of the box, without being 
> aware of it.

Yes.

> So just meet IDN restrictions in your plans to your org DNS Names/CNAME, 
> unbound local data, whatever.

That is exactly how it works. You do place the A-Label in the DNS config, and 
things will work just fine. Not the U-Label.

   Patrik

> On Wednesday, November 27, 2019, 9:33:42 PM GMT, Patrik Fältström 
> <[email protected]> wrote:
>
>  What is called "IDNA2008" is in use "all over the place" and is the way of 
> encoding Unicode so that the encoded strings can be used as domain names.
>
>   Patrik Fältström
>
> On 27 Nov 2019, at 8:51, Ron Varburg via Unbound-users wrote:
>
>>   Does https://en.wikipedia.org/wiki/Internationalized_domain_name related
>> to your question? Even if it does, I wonder myself how much it is used.    
>> On Tuesday, November 26, 2019, 3:04:31 PM GMT, Shanmuga Rao via 
>> Unbound-users <[email protected]> wrote:
>>
>>   Hello, 
>> We are planning to use unbound to perform DNS overrides for traffic  
>> redirection in certain locations within our org.  I was wondering if there 
>> are any restrictions imposed on the DNS Names/CNAMEs we would add in the 
>> unbound.conf under local zone and data? 
>>
>> For example, AD DNS contains a list of characters that are not allowed, list 
>> of characters/digits a record should not start with etc. Do the same rule 
>> apply to unbound as well or can we go a bit crazy with our naming 
>> conventions ?
>>
>> I apologize in advance If there is already some documentation on this.  
>> Please redirect me to them if available. 
>>
>> Thanks!! 

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