samba - Jun 2020 - Samba-4.11 AD DC dnsupdate fails

FreeBSd-12.1p5
Samab-4.11
py37-dnspython-1.16.0
python37-3.7.7


I am seeing a recurring error relating to dns updates.  I ran:

samba_dnsupdate --verbose

I see this result:

Calling samba-tool dns add -k no -P ['192.168.216.166',
'brockley.harte-lyne.ca',
'_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones',
'SRV',
'SMB4-1.BROCKLEY.HARTE-LYNE.CA.brockley.harte-lyne.ca 389 0 100']
ERROR(runtime): uncaught exception - (9711,
'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File
"/usr/local/lib/python3.7/site-packages/samba/netcmd/__init__.py",
line
186, in _run
    return self.run(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/samba/netcmd/dns.py",
line 945,
in run
    raise e
  File "/usr/local/lib/python3.7/site-packages/samba/netcmd/dns.py",
line 941,
in run
    0, server, zone, name, add_rec_buf, None)
Failed 'samba-tool dns' based update of SRV
_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.brockley.harte-lyne.ca
SMB4-1.BROCKLEY.HARTE-LYNE.CA.brockley.harte-lyne.ca 389
Failed update of 29 entries

There have been no manual updates done to the DNS forward zonefile.  Samba-tool
has only been used for queries since the initial provisioning.

What is causing this? A uplicate record, I know but why does the duplicate
exist?  More to the point how do I get rid of it?


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James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: +1 905 561 1241
Hamilton, Ontario             fax: +1 905 561 0757
Canada  L8E 3C3

On 03/06/2020 21:23, James B. Byrne via samba wrote:
> FreeBSd-12.1p5
> Samab-4.11
> py37-dnspython-1.16.0
> python37-3.7.7
>
>
> I am seeing a recurring error relating to dns updates.  I ran:
>
> samba_dnsupdate --verbose
>
> I see this result:
>
> Calling samba-tool dns add -k no -P ['192.168.216.166',
> 'brockley.harte-lyne.ca',
> '_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones',
'SRV',
> 'SMB4-1.BROCKLEY.HARTE-LYNE.CA.brockley.harte-lyne.ca 389 0 100']
> ERROR(runtime): uncaught exception - (9711,
> 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
>
>
> What is causing this? A uplicate record, I know but why does the duplicate
> exist?  More to the point how do I get rid of it?
Well yes, it is an error, but not the one you think it is ;-)

If you think about it, how can a record already existing be an error ?

The error is in the way it tells you it exists, or rather the way it 
doesn't tell you the record exists ;-)

This has been fixed and will be in the next major version of Samba 4.13.0

Rowland