[Pdns-users] Reverse PTR

[Aki Tuomi]

On 27.06.2017 15:54, Délsio Cabá wrote:
> Dear,
>
> We need to follow the below instructions for BIND.
> How can we do this with PDNS?
>
> If you are using Bind, once you have defined a naming convention for a
> portion of your space you can use the powerful $GENERATE directive
> (described in the Bind 9 manual) to define several records with a
> single line. For instance, you can write in the
> 100.51.198.in-addr.arpa zone file:
>
>    $ORIGIN 100.51.198.in-addr.arpa.
>    $GENERATE 1-254 $ PTR adsl-$-100-51-198.dynamic.example.net.
>
> which is equivalent to 254 lines
>
>    1.100.51.198.in-addr.arpa.   PTR adsl-1-100-51-198.dynamic.example.net.
>    ...
>    254.100.51.198.in-addr.arpa. PTR adsl-254-100-51-198.dynamic.example.net.
>
> Do not forget to check that matching forward A records are defined in
> the zone of example.net. This is very important because it "validates"
> the rDNS information. You can define them with another $GENERATE
> directive, like
>
>    $ORIGIN dynamic.example.net.
>    $GENERATE 1-254 adsl-$-100-51-198 A 198.51.100.$
>
> which is equivalent to 254 lines
>
>    adsl-1-100-51-198.dynamic.example.net.   A 198.51.100.1
>    ...
>    adsl-254-100-51-198.dynamic.example.net. A 198.51.100.254
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With bind backend you can use $GENERATE as in Bind.

Aki