Why is slave zone different from master zone..?

[Mark Andrews]

> 
> Ronni Jensen wrote:
> > Hi,
> >
> > On my master NS I have this reverse map:
> >
> > -----------
> > $TTL 86400      ; 1 day
> > $ORIGIN 64.65.66.IN-ADDR.ARPA.
> > @                       IN SOA  ns1.xxx.dk. dns.xxx.dk. (
> >                                 2006071305 ; serial
> >                                 10800      ; refresh (3 hours)
> >                                 3600       ; retry (1 hour)
> >                                 1209600    ; expire (2 weeks)
> >                                 86400      ; minimum (1 day)
> >                                 )
> >                         NS      ns1.xxx.dk.
> >                         NS      ns2.xxx.dk.
> >
> > ; Begin
> > 2                       PTR     ns1.xxx.dk.
> > ; End
> > -----------
> >
> > But when this zone has been AXFR'ed to my slave NS, it comes to look
> > like this:
> >
> > -----------
> > $ORIGIN .
> > $TTL 86400      ; 1 day
> > 64.65.66.in-addr.arpa   IN SOA  ns1.xxx.dk. dns.xxx.dk. (
> >                                 2006071305 ; serial
> >                                 10800      ; refresh (3 hours)
> >                                 3600       ; retry (1 hour)
> >                                 1209600    ; expire (2 weeks)
> >                                 86400      ; minimum (1 day)
> >                                 )
> >                         NS      ns1.xxx.dk.
> >                         NS      ns2.xxx.dk.
> > $ORIGIN 64.65.66.in-addr.arpa.
> > 2                       PTR     ns1.xxx.dk.
> > -----------
> >
> > Can someone explain to me, why the $ORIGIN directive is being moved from
> > the top of the zone to the resource record(s) area - and the @ wildcard
> > in the SOA record is replaced with $ORIGIN value?
> >
> > Should I construct my master zone differently, or is the design ok?
> >
> > Thank you
> > /Ronni
> 
> Ronni,
> 
> Everything looks fine to me.  $ORIGIN has been moved because if you see
> the first declaration of $ORIGIN it is referring to ".", the second
> declaration of $ORIGIN is showing for 64.65.66.in-addr.arpa.
> 
> Also note, that @ symbol is DNS Bind shorthand for $ORIGIN

	It is RFC 1034 shorthand not BIND shortnand.
 
> Thanks
> 
> Mike
> 
> 
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org