Questions on how to setup Reverse DNS in bind 9

Jeremy C. Reed jreed at
Mon Jul 18 14:21:11 UTC 2016

On Sun, 17 Jul 2016, Spork Schivago wrote:

> So, in the /var/named directory, I create a file
> called:
> The contents of are as follows:
> $TTL 1D
> @       IN SOA (
>                                         2016071705      ; serial
>                                         1D              ; refresh
>                                         1H              ; retry
>                                         1W              ; expire
>                                         3H )            ; minimum
>        IN      NS
>         IN      NS
> 104     IN      PTR
> 44      IN      PTR

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 "" but no NS for 
that.  Also if it was only "" 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.

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