additional-from-cache and CNAME records

[Jeremie Le Hen]

> > ===================================================
> > === additional-from-cache no, querying for an A ===
> > ===================================================
> > 
> > droopy:space# host -vt a point-outside.example.com xxx.xxx.xxx.xxx
> > Trying "point-outside.example.com"
> > Using domain server:
> > Name: xxx.xxx.xxx.xxx
> > Address: xxx.xxx.xxx.xxx#53
> > Aliases: 
> > 
> > Host point-outside.example.com not found: 5(REFUSED)
> > Received 37 bytes from xxx.xxx.xxx.xxx#53 in 117 ms
> 
> What happens for a non-recursive query?
> 
>  host -vrt a point-outside.example.com. xxx.xxx.xxx.xxx

It works well when querying non-recursively for an A record.  I don't
know what to think about this.
Please check the correct case off :
[ ] This is a bug.
[ ] This is a feature.

I would really like to understand the magic behind this point.

Reminder:
point-outside   IN      CNAME           another-name.at.another-domain.com.

and "additional-from-cache no;" in named.conf

========== cut here ===========
droopy:space# host -rvt a point-outside.example.com xxx.xxx.xxx.xxx
Trying "point-outside.example.com"
Using domain server:
Name: xxx.xxx.xxx.xxx
Address: xxx.xxx.xxx.xxx#53
Aliases: 

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44501
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;point-outside.example.com.           IN      A

;; ANSWER SECTION:
point-outside.example.com.    10800   IN      CNAME   another-name.at.another-domain.com.

-- 
Jeremie LE HEN aka TtZ/TataZ                          jeremie.le-hen at epita.fr
                                                                 ttz at epita.fr
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