[Samba] Migration 3.5 to 4.x, realm identical to domain

[Zombie Ryushu]

On 5/31/22 04:00, Philippe Maladjian via samba wrote:
> Hi there,
>
> I am performing tests to migrate an old domain controller from Samba
> 3.5 + ldap + bind to Samba branch 4 to simulate an AD and I find myself
> facing a problem with the domain name.
>
> The current domain name is DOM.MONDOMAIN and according to the docs that
> I read and test carried out, I cannot have an identical NDD and realm.
> Is there a way to work around this problem or to rename the domain
> without breaking everything (SID...)?
>
> Thanks in advance.

I had this exact problem. The Realm is what matters. The Workgroup/NT 
Domain will become something like  MONDOM-NT,