Questions on how to setup Reverse DNS in bind 9

[Jeremy C. Reed]

On Sun, 17 Jul 2016, Spork Schivago wrote:

> So, in the /var/named directory, I create a file
> called: 0.117.238.104.in-addr.arpa
> 
> The contents of 0.117.238.104.in-addr.arpa are as follows:
> $TTL 1D
> @       IN SOA  ns1.jetbbs.com. spork.jetbbs.com. (
>                                         2016071705      ; serial
>                                         1D              ; refresh
>                                         1H              ; retry
>                                         1W              ; expire
>                                         3H )            ; minimum
> 
> 0.117.238.104.in-addr.arpa.        IN      NS      ns1.jetbbs.com.
> 0.11.148.132.in-addr.arpa.         IN      NS      ns2.jetbbs.com.
> 
> 104     IN      PTR     franklin.jetbbs.com.
> 44      IN      PTR     franklin.jetbbs.com.


This won't work as you need NS records that match up to the zone name, 
In this case, the common zone name is only "in-addr.arpa." but no NS for 
that.  Also if it was only "in-addr.arpa." the two PTR records would be 
useless.  If your zone name does match so you have a NS record, as it is 
now, you'd have "out-of-zone data" which is ignored. Try using two 
different more specific zone files such as for 11.148.132.IN-ADDR.ARPA. 
and 117.238.104.IN-ADDR.ARPA.