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

[Rowland Penny]

On Tue, 2022-05-31 at 10:00 +0200, 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.

I take it that 'DOM.MONODOMAIN' is a very bad Netbios domain name (aka
workgroup), if so then you are going to have to change it. I would do
this before the upgrade. I suggest you read this:

https://wiki.samba.org/index.php/Migrating_a_Samba_NT4_Domain_to_Samba_AD_(Classic_Upgrade)

Rowland