[Samba] Maybe working - Re: BIND DLZ zone transfers

Robert Moskowitz rgm at htt-consult.com
Mon Sep 7 20:26:32 UTC 2015


Is there some option on the slave to set the frequency of the AXFR? Say 
every hour?

On 09/07/2015 03:45 PM, Lars Hanke wrote:
> Hi Robert,
>
> yes it does work. But the DLZ bind will not notify any slaves, when 
> the repository changes. This can be painful, especially for longer TTL 
> values.
>
> Regards,
>  - lars.
>
> Am 07.09.2015 um 20:16 schrieb Robert Moskowitz:
>>
>>
>> On 09/07/2015 12:52 PM, Robert Moskowitz wrote:
>>> I am looking at: https://wiki.samba.org/index.php/DNS_administration
>>>
>>> I am using bind 9.9 on all my DNS servers.
>>>
>>> To set up secondarying my Samba DNS zones to my other Bind servers. I
>>> come across the following:
>>>
>>> https://bugzilla.samba.org/show_bug.cgi?id=9634
>>>
>>> Is it possible to transfer the DLZ zones now as dates on this bug are
>>> 2 years old?
>>
>> So I tried it anyway:
>>
>> In my main DNS server:
>>
>>          zone "home.htt" {
>>                  type slave;
>>                  file "slaves/bak.home.htt";
>>                  masters {192.168.192.2; };
>>          };
>>
>> I reload and there I see:
>>
>> Sep 07 14:00:05 valeria.htt-consult.com systemd[1]: Reloaded Berkeley
>> Internet Name Domain (DNS).
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: dns_master_load:
>> file format mismatch
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: zone
>> home.htt/IN/internal: loading from master file slaves/bak.home.htt
>> failed: not implemented
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: all zones loaded
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: running
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: zone
>> home.htt/IN/internal: Transfer started.
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: transfer of
>> 'home.htt/IN/internal' from 192.168.192.2#53: connected using
>> 192.168.192.5#51888
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: zone
>> home.htt/IN/internal: transferred serial 3
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: zone
>> home.htt/IN/internal: transfer: could not set file modification time of
>> 'slaves/bak.home.htt': permission denied
>> Sep 07 14:00:05 valeria.htt-consult.com named[2195]: transfer of
>> 'home.htt/IN/internal' from 192.168.192.2#53: Transfer completed: 1
>> messages, 23 records, 1000 bytes, 0.020 secs (50000 bytes/sec)
>>
>> And over on homebase:
>>
>> Sep  7 14:00:05 homebase named[1133]: client 192.168.192.5#51888
>> (home.htt): transfer of 'home.htt/IN': AXFR started
>> Sep  7 14:00:05 homebase named[1133]: client 192.168.192.5#51888
>> (home.htt): transfer of 'home.htt/IN': AXFR ended
>>
>> But no file /var/named/slaves/bak.home.htt
>>
>> And yet on my DNS server, I can resolve homebase.home.htt:
>>
>> # dig homebase.home.htt
>>
>> ; <<>> DiG 9.9.4-RedHat-9.9.4-18.el7 <<>> homebase.home.htt
>> ;; global options: +cmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55142
>> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
>>
>> ;; OPT PSEUDOSECTION:
>> ; EDNS: version: 0, flags:; udp: 4096
>> ;; QUESTION SECTION:
>> ;homebase.home.htt.        IN    A
>>
>> ;; ANSWER SECTION:
>> homebase.home.htt.    900    IN    A    192.168.192.2
>>
>> ;; AUTHORITY SECTION:
>> home.htt.        900    IN    NS    homebase.home.htt.
>>
>> ;; Query time: 3 msec
>> ;; SERVER: 192.168.192.5#53(192.168.192.5)
>> ;; WHEN: Mon Sep 07 14:15:46 EDT 2015
>> ;; MSG SIZE  rcvd: 76
>>
>>
>>
>
>




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