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

[Philippe Maladjian]

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.