Why is slave zone different from master zone..?

[MikeDawg]

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

Thanks

Mike