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

[Lars Hanke]

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
>
>
>