PTR format question

Alan Clegg aclegg at isc.org
Sat Mar 20 23:48:10 UTC 2010


groups wrote:
> In the process of cleaning up a much neglected PTR file
> 
> Bind:   9.6.2.1
> OS:      CentOS 5.4
> 
> Current PTR in this format:  (1 tab between entries)
> 
> $ORIGIN 58.172.in-addr.arpa.
> $ORIGIN 0.58.172.in-addr.arpa.
> 11    PTR    nat-172-58-0-11.example.com.
> 12    PTR    nat-172-58-0-12.example.com.
> ...
> $ORIGIN 58.172.in-addr.arpa.
> $ORIGIN 1.58.172.in-addr.arpa.
> 21    PTR    nat-172-58-1-21.example.com.
> 22    PTR    nat-172-58-1-22.example.com.
> ...
> $ORIGIN 58.172.in-addr.arpa.
> $ORIGIN 2.58.172.in-addr.arpa.
> 31      PTR     nat-172-58-2-31.example.com.
> 32      PTR     nat-172-58-2-32.example.com.
> ...

$ORIGIN 0.58.172.in-addr.arpa.
$GENERATE 11-... $ PTR nat-172-58-0-$.example.com.

$ORIGIN 1.58.172.in-addr.arpa.
$GENERATE 21-... $ PTR nat-172-58-1-$.example.com.

Do note that these ranges look suspicious.

AlanC

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