[Samba] Question about migration from samba3 to samba4

Rowland penny rpenny at samba.org
Wed Jun 12 15:08:08 UTC 2019

On 12/06/2019 15:58, Marco Gaiarin via samba wrote:
> Mandi! Miguel Coa M. via samba
>    In chel di` si favelave...
>> Actually we have pdc with Samba3 for domain and now install Samba4 for migrate the old samba3. My question is, Is possible make a progressive user migration and both environments works together  (shared folders, printers, etc).   Or the unique option is migrate all users from samba3 to samba4  ¿?
> I've done exactly that.
> I've had 4 'NT' domains, so i've created a new 'AD' domain, create
> users in new domain, do some tests, migrate PC (and users) to the new
> domain (still using the old domain's shares), then, after all that
> stuff, migrate shares to the new domain, and finally shut off the old
> domains.
> All task can easily scripted; i must say that i just had a tool to keep
> password in sync, wrapping around 'check user script' (NT) and
> 'samba-tool user syncpasswords' (AD).
That would probably be the only way to do it, if you 'classicupgrade' 
your PDC to AD it is all or nothing. Once you have classicupgraded your 
old PDC, you must turn it off, you cannot have a PDC in an AD domain 
with the same SID.


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