[bind10-dev] rrset trust level (Question about section 5.4.1 of rfc2181)

[Likun Zhang]

> > 2. DNAME
> >
> > Similar with CNAME, we have to deal with the situation when there are one or
> > more DNAME records in answer section(I didn't find it in some rfc, including
> > dname bits, but I think it should work like cname). Message example:
> >
> > ;HEADER
> >  AA QR
> > ;QUESTION
> >   a.example.com.  IN  A
> > ;ANSWER
> >   Example.com.    DNAME  example.org.
> >   a.example.com.  CNAME   a.example.org.
> >   Example.org.     DNAME  example.cn.
> >   a.example.org.   CNAME  a.example.cn.
> >   a.example.cn.    A      1.1.1.1
> >
> > My understanding is:
> >  Only the first record in answer section is authoritative, all the left recor
> > ds are not authoritative, am I right here?
> 
> The DNAME is authoritative and the CNAME has the same trust as the
> DNAME being synthesised from it.

Hi Mark,

So you mean only the first two records in answer section are authoritative, the left three records are not authoritative, right?

Thanks
Likun