Significance of case in responses

David Botham dns at botham.net
Thu Feb 6 22:44:08 UTC 2003


Case is not significant.  However, it is preserved.


Dave...

> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> Behalf Of Robert Faulds
> Sent: Thursday, February 06, 2003 5:26 PM
> To: bind-users at isc.org
> Subject: Significance of case in responses
> 
> 
> What is the significance of the case in the response to a query? I
> seen to recall something about cached vs. authoritative, or some
> such thing but can not find any reference to it in any documentation.
> 
> Just as an example; If I query for a domain and receive:
> 
> > dig query.com
> 
> ;; ANSWER SECTION:
> query.com.	2D IN NS	NS.SOME.DOMAIN
> query.com.	2D IN NS	DNS.some.domain
> 
> ;; AUTHORITY SECTION:
> query.com.	2D IN NS	NS.SOME.DOMAIN
> query.com.	2D IN NS	DNS.some.domain
> 
> ;; ADDITIONAL SECTION:
> NS.SOME.DOMAIN.	2D IN A		1.2.3.4
> DNS.some.domain	2D IN A		4.3.2.1
> 
> Why is some or all of the record returned in upper case?
> 
> Thanks,
> Robert
> 
> --
> frf at xocolatl.com   39:FF:7C:52:66:9D:B9:A3  EA:67:3C:7F:D1:B6:30:36
> 
> 
> 
>  "Virtual" means never knowing where your next byte is coming from.




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