[Samba] questions regarding the Demoting an Offline Domain Controller procedure

[Jean-Louis Biasini]

hello again,

  Can anyone here points me in the right direction?

Le 08/07/2022 à 14:25, Jean-Louis Biasini via samba a écrit :
> hello list,
>
> sorry for the bump, does anybody has any information on this one?
>
> thanks
>
> jl
>
> Le 06/07/2022 à 14:15, Jean-Louis Biasini via samba a écrit :
>> hi all,
>>
>> I have questions regarding a DC that I had to demote following the 
>> Demoting an Offline Domain Controller procedure from here 
>> https://wiki.samba.org/index.php/Demoting_a_Samba_AD_DC.
>>
>> 1. The procedure went well and no other problems occured, but since 
>> then I have the following popping up in the log of all the remaining 
>> DCs at restart:
>>
>> ../../source4/dsdb/kcc/scavenge_dns_records.c:491(dns_delete_tombstones)
>> dns_delete_tombstones: A tombstoned dnsNode has non-tombstoned 
>> records, which should not happen.
>>
>> How can I find and delete those remaining record? I don’t see 
>> anything related to the demoted DC with rsat DNS tool nor with:
>>
>> ldbsearch -H /usr/local/samba/private/sam.ldb '(invocationId=*)' 
>> --cross-ncs objectguid
>>
>> 2. the procedure states that I shouldn’t reconnect et demoted offline 
>> dc, does this apply only to that specific machine? Can I declare a 
>> new dc with the same name and/or ip and/or mac address (VM) or should 
>> this also be avoided?
>>
>> samba is Version 4.15.8 on Centos7 with bind dlz as dns backend
>>
>>
>> many thanks
>>
>> Jean-Louis
>