[Samba] samba-tool domain join fail

[Pisch Tamás]

Hi,

I would like to install a Samba DC in a Windows AD environment according to
this document:
https://wiki.samba.org/index.php/Joining_a_Samba_DC_to_an_Existing_Active_Directory
The system is Debian 10 with Samba 12.10 from https://apt.van-belle.nl/ .

The join command:

samba-tool domain join ourdomain.local DC -U" ourdomain\admin" --option="dns
forwarder=208.67.222.222 208.67.220.220" --option="interfaces=lo eth0" -d3
I get an error message:
...
Failed to apply records: Failed to locally apply remote add of CN=owa
(Default Web Site),CN=HTTP,CN=Protocols,CN=OCS1,CN=Servers,CN=Exchange
Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=First
Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=
ourdomain,DC=local: attribute 'msExchOWATranscodingFileTypes': value 'S:8:
      .:<GUID=36b83610-396d-4f53-ac03-5eae2fb4677a>;CN=owa (Default Web
Site),CN=HTTP,CN=Protocols,CN=OCS1,CN=Servers,CN=Exchange Administrative
Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=First
Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=
ourdomain,DC=local' on 'CN=owa (Default Web
Site),CN=HTTP,CN=Protocols,CN=OCS1,CN=Servers,CN=Exchange Administrative
Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=First
Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=
ourdomain,DC=local' provided more than once in ADD object: Operations error
Failed to commit objects: WERR_GEN_FAILURE
...

Thank you in advance.

Regards,

Tamas Pisch.