nxdomain not caching for configured reverse lookup

sumsum 2000 sum2hike at gmail.com
Tue Aug 20 10:56:30 UTC 2013


[root at FF15763 var]# dig -x  7.7.7.7

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-16.mlos2 <<>> -x 7.7.7.7
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62698
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;7.7.7.7.in-addr.arpa.        IN    PTR

;; Query time: 295 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Aug 20 15:49:24 2013
;; MSG SIZE  rcvd: 38

[root at FF15763 var]# dig -x  9.9.9.9

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-16.mlos2 <<>> -x 9.9.9.9
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56762
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;9.9.9.9.in-addr.arpa.        IN    PTR

;; AUTHORITY SECTION:
in-addr.arpa.        900    IN    SOA    b.in-addr-servers.arpa.
nstld.iana.org. 2011029209 1800 900 604800 3600

;; Query time: 326 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Aug 20 15:49:29 2013
;; MSG SIZE  rcvd: 106


On Tue, Aug 20, 2013 at 3:49 PM, Matus UHLAR - fantomas
<uhlar at fantomas.sk>wrote:

> On 20.08.13 15:42, sumsum 2000 wrote:
>
>>                        zone "7.7.7.7.in-addr.arpa" IN {
>>                                type forward;
>>                                forwarders {10.212.24.11;};
>>                                forward only;
>>                        };
>>
>
>  and when i do  dig -x 7.7.7.7, which is in the configured zone for DNS
>> 10.212.24.11, i am not able to get the responses cached.
>>
>
> what is the TTL of those NXDOMAIN answers?
>
>
> --
> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
> Warning: I wish NOT to receive e-mail advertising to this address.
> Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
> Remember half the people you know are below average.
> ______________________________**_________________
> Please visit https://lists.isc.org/mailman/**listinfo/bind-users<https://lists.isc.org/mailman/listinfo/bind-users>to unsubscribe from this list
>
> bind-users mailing list
> bind-users at lists.isc.org
> https://lists.isc.org/mailman/**listinfo/bind-users<https://lists.isc.org/mailman/listinfo/bind-users>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/bind-users/attachments/20130820/134504ee/attachment.html>


More information about the bind-users mailing list