reverse dns in bind9

Tim Dunphy bluethundr at gmail.com
Mon Mar 28 11:21:36 UTC 2011


Hello,

 Thanks for your reply!

  I took your advice and removed that line from resolv.conf and added
it into /etc/named/named.conf

  Now it looks like this

  // RFC 1912
zone "localhost"        { type master; file "master/localhost-forward.db"; };
zone "127.in-addr.arpa" { type master; file "master/localhost-reverse.db"; };
zone "255.in-addr.arpa" { type master; file "master/empty.db"; };
zone "192.in-addr.arpa" { type master; file "master/summitjnhome-reverse.db"; };

 And I did a restart of both network and named but the issue remains:


LBSD2# host 192.168.1.44
Host 44.1.168.192.in-addr.arpa. not found: 3(NXDOMAIN)


On Mon, Mar 28, 2011 at 1:06 AM, Robert Bonomi <bonomi at mail.r-bonomi.com> wrote:
>
>> Date: Mon, 28 Mar 2011 00:19:26 -0400
>> From: Tim Dunphy <bluethundr at gmail.com>
>> Subject: reverse dns in bind9
>>
>> Hello,
>>
>>  I am attempting to setup reverse dns in bind 9 under freebsd... this is
>>  in an attempt to allow mysql to work a little easier with DNS
>>  resolution.
>>
>>  In my /etc/named/named.conf file I have the following:
>>
>> // RFC 1912
>> zone "localhost"  { type master; file "master/localhost-forward.db"; };
>> zone "127.in-addr.arpa" { type master; ile "master/localhost-reverse.db"; };
>> zone "255.in-addr.arpa" { type master; file "master/empty.db"; };
>> zone "192.in-addr.arpa" { type master; file "master/summitjnhome-reverse.db"; };
>> zone "summitnjhome.com" { type master; file "master/summitnjhome.db"; };
>>
>>
>> My master/summitnjhome.com looks like the following:
>
> For starters, this should be in "master/summitnjhome-reerse.db"
>>
>> $TTL 3D
>> @       IN      SOA     ns1.summitnjhome.com. bluethundr.gmail.com. (
>>                         201103271 ; Serial, todays date + todays serial
>>                         8H      ; Refresh
>>                         2H      ; Retry
>>                         4W      ; Expire
>>                         1D)     ; Minimum TTL
>>                         NS      ns1.summitnjhome.com.
>>
>> summitnjhome.com.
>> 42               PTR     LCENT01.summitnjhome.com.
>> 43               PTR     LCENT02.summitnjhome.com.
>> 44               PTR     LBSD2.summitnjhome.com.
>> 45               PTR     LCENT02.summitnjhome.com.
>> 46               PTR     LCENT03.summitnjhome.com.
>> 47               PTR     LCENT04.summitnjhome.com.
>> 23               PTR     virtcent01.summitnjhome.com.
>> 24               PTR     virtcent02.summitnjhome.com.
>> 21               PTR     virtcent03.summitnjhome.com.
>> 26               PTR     virtcent04.summitnjhome.com.
>> 27               PTR     virtcent05.summitnjhome.com.
>> 28               PTR     virtcent06.summitnjhome.com.
>> 29               PTR     virtcent07.summitnjhome.com.
>> 30               PTR     virtcent08.summitnjhome.com.
>> 31               PTR     virtcent09.summitnjhome.com.
>> 32               PTR     virtcent10.summitnjhome.com.
>> 33               PTR     virtcent11.summitnjhome.com.
>> 34               PTR     virtcent12.summitnjhome.com.
>> 35               PTR     virtcent13.summitnjhome.com.
>> 36               PTR     virtcent14.summitnjhome.com.
>> 37               PTR     virtcent15.summitnjhome.com.
>> 38               PTR     virtcent16.summitnjhome.com.
>> 39               PTR     virtcent17.summitnjhome.com.
>> 40               PTR     virtcent18.summitnjhome.com.
>> 41               PTR     virtcent19.summitnjhome.com.
>>
>>
>> and my /etc/resolv.conf looks like this:
>>
>> domain  summitnjhome.com
>> nameserver     192.168.1.44
>> nameserver     4.2.2.2
>>
>> zone "1.168.192.in-addr.arpa" { type master; file
>> "/etc/named/master/summitnjhome-reverse.db"
>> };
>
> the 'zone' line  you show should *NOT* be in resolv.conf at all.
> this line should be in the  named.conf file *instead* of the one for
> the '192.in-addr.arpa' zone.
>
>> then I restart both named and the network service
>>
>> and yet if I were to try forward resolution:
>>
>> LBSD2# host sum1
>> sum1.summitnjhome.com is an alias for LCENT01.summitnjhome.com.
>> LCENT01.summitnjhome.com has address 192.168.1.42
>>
>>
>> and then reverse resolution:
>>
>> LBSD2# host 192.168.1.42
>> Host 42.1.168.192.in-addr.arpa. not found: 3(NXDOMAIN)
>>
>> I have no luck. Any thoughts on this?
>
> see above.
>
>
>
>



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