[Samba] pdc emulator dns record missing after transferring role

[Alex MacCuish]

Hi Alex

I've had the same DNS manager issue. I've opened a bug 
(https://bugzilla.samba.org/show_bug.cgi?id=14310) and reported on the 
mailing list (https://lists.samba.org/archive/samba/2020-March/228772.html)

No fix yet.

On 18/03/2020 15:43, Alex via samba wrote:
> Rowland,
>
> I've encountered an issue with connecting to the samba DC's DNS service from DNS
> Manager tool (under Windows). It says "Active Directory service is not
> available".
>
> While digging into it, I've found the samba rpc worker throws an error:
> [pid 18398] geteuid()                   = 0
> [pid 18398] write(3, "[2020/03/18 18:36:21.694834,  2] ../../source4/rpc_server/dnsserver/dnsdb.c:144(dnsserver_db_enumerate_zones)\n", 110) = 110
> [pid 18398] geteuid()                   = 0
> [pid 18398] write(3, "  dnsserver: Found DNS zone domain.com\n", 40) = 40
> [pid 18398] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=1544, ...}) = 0
> [pid 18398] geteuid()                   = 0
> [pid 18398] write(3, "[2020/03/18 18:36:21.696226,  1] ../../librpc/ndr/ndr.c:632(_ndr_pull_error)\n", 77) = 77
> [pid 18398] geteuid()                   = 0
> [pid 18398] write(3, "  ndr_pull_uint32: ndr_pull_error(Buffer Size Error): Pull bytes 4 (../../librpc/ndr/ndr_basic.c:152) at ../../librpc/ndr/ndr_basic.c:152\n", 138) = 138
> [pid 18398] getpid()                    = 18398
>
> Any ideas how to fix it?
>
>> Just   transferred   the  PDC  role  to  samba  DC  again  and  manually  issued
>> "samba_dnsupdate  --use-samba-tool --fail-immediately" command right after that.
>> No pdc record added and the error came up:
>> ERROR(runtime): uncaught exception - (9717, 'WERR_DNS_ERROR_DS_UNAVAILABLE')
>>    File
>> "/usr/local/samba/lib64/python3.6/site-packages/samba/netcmd/__init__.py", line 186, in _run
>>      return self.run(*args, **kwargs)
>>    File "/usr/local/samba/lib64/python3.6/site-packages/samba/netcmd/dns.py", line 945, in run
>>      raise e
>>    File "/usr/local/samba/lib64/python3.6/site-packages/samba/netcmd/dns.py", line 941, in run
>>      0, server, zone, name, add_rec_buf, None)
>> Gave it one more try by restarting samba - same result: no pdc record and that
>> error in the log.
>> Any ideas?