[Samba] Samba4 - DnsAdmins group dissapeared

Rowland Penny rpenny at samba.org
Thu Nov 15 10:21:25 UTC 2018

On Thu, 15 Nov 2018 10:20:41 +0100
Julien TEHERY via samba <samba at lists.samba.org> wrote:

> Hello,
> I actually have 3 principal DCs
> Samba version : 4.6.4 / Redhat7
> All 3 DCs work with BIND9_DLZ as dns backend.
> Today I added a new DC to my domain assignd to a site i previously 
> created with:
> samba-tool domain join mydomain.lan DC -U administrator 
> --realm=MYDOMAIN.LAN -W mydomain --site=MYSITE*
> *Then I tried to migrate the dns backend of this fresh new DC to bind 
> DLZ (as i did for every other DC before)

Why not just add '--dns-backend=BIND9_DLZ' to the join command and do
everything at once ?

> If i try an ldbsearch or an ldapsearch, i can't find any DnsAdmins 
> group, even on the main DC.
> What's going wrong?

No real idea, but if you are sure the 'DnsAdmins' group doesn't exist,
try adding it with:

samba-tool group add DnsAdmins --description='DNS Administrators Group'
--group-type=Security --group-scope=Domain -U administrator

It will either create the group for you, or tell you if it does
exist ;-)


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