[Samba] switch from bind9_dlz to bind9 flate file

L.P.H. van Belle belle at bazuin.nl
Mon Jan 20 01:39:14 MST 2014

I just looked at this bug report ( which is closed )  

so for only internal samba its fix but not with a windows server as master dns/ADDC + dhcp 
AND scavaging is enabled on the dns. 

Best regards, 


>-----Oorspronkelijk bericht-----
>Van: lp101 [mailto:lingpanda101 at gmail.com] 
>Verzonden: vrijdag 17 januari 2014 17:21
>Aan: Rowland Penny; L.P.H. van Belle; samba at lists.samba.org
>Onderwerp: Re: [Samba] switch from bind9_dlz to bind9 flate file
>The below email is from Günter in another topic(DomainDnsZone 
>Replication Shows 200,000 Objects).
>Does this help?
>"FYI - the samba ISC bind DLZ plugin does a different approach.
>When all child DNS entry are gone, it_leaves_  the directory 
>storage as:
>(sambatool dns query .... output)
>Name=mytest, Records=0, Children=0
>So the record is_not_  deleted - more or less "left as an 
>unused entry".
>Those entries can be re-used later, but can also accumulate when not
>being re-used.
>As i've seen with a windows7 client during normal operation, it deletes
>its A and AAAA records and then registers one/both again in 
>some interval
>of about 5 to 10 minutes! (Could be due i was running the MS 
>MMC DNS plugin).
>This behavior is atm handled fine with the DLZ driver - but is 
>somewhat FATAL
>for the internal DNS server: It creates LOTS of deleted dns entries!
>So i've reverted the patch
>      8b24c43b382740106474e26dec59e1419ba77306
>which was deleting the whole dns entry.
>After this revert the internal dns server behaves the same as 
>the DLZ driver and
>leaves those
>    Name=mytest, Records=0, Children=0
>records around - BUT THEN the current implementation is NOT able to add
>new incoming records!
>Atm i did a very first simple patch to the internal dns, which allows
>to add new entries in that
>   Name=mytest, Records=0, Children=0
>formerly failing state.
>Now the internal dns_seems_  to behave similar to the DLZ driver, but
>more investigation is needed because dns entries can be "static" or
>"time stamped" ....
>So i'm still looking at all related infos ....
>Btw - has someone seen "strange" behavior in this area when the
>DLZ driver is used?
>Cheers, Günter"
>On 1/17/2014 11:11 AM, Rowland Penny wrote:
>> On 17/01/14 15:54, L.P.H. van Belle wrote:
>>> Im having problems with the tombstone lifetime stamp,
>>> and i want to test if it works ok with the flat file setup.
>>> im getting so much : samba b9_putrr: unhandled record type 
>0 messages.
>>> about 1miljoen now.. and thats just today..
>>> of if anyone knows a trick how to remove the tombstone 
>lifetime stamp 
>>> from records in a windows dns.
>>> i alread disabled the scavaging but for now no go..
>>> Thanx in advance.
>>> Louis
>>>> -----Oorspronkelijk bericht-----
>>>> Van: Rowland Penny [mailto:rowlandpenny at googlemail.com]
>>>> Verzonden: vrijdag 17 januari 2014 16:45
>>>> Aan: L.P.H. van Belle; samba at lists.samba.org
>>>> Onderwerp: Re: [Samba] switch from bind9_dlz to bind9 flate file
>>>> On 17/01/14 15:37, L.P.H. van Belle wrote:
>>>>> hai,
>>>>>    Im looking if its posible to switch from bind_dlz to 
>bind flate 
>>>>> file.
>>>>> are there any thing to look after?
>>>>>          Best regards,
>>>>>    louis
>>>> Is there any reason why you want to switch ?
>>>> Rowland
>> Cannot say I am getting this and I am using bind_dlz, but 
>then again I 
>> am also using dhcp to update the zones.
>> Rowland

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