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samba-users: Re: [Samba] samba3 and samba4 in the same domain?

Re: [Samba] samba3 and samba4 in the same domain?

From: Andrew Bartlett <abartlet_at_nospam>
Date: Tue May 11 2010 - 01:08:44 GMT
To: Tomasz Chmielewski <>

On Mon, 2010-05-10 at 14:40 +0200, Tomasz Chmielewski wrote:
> I have a Samba3 + OpenLDAP installation.
> How can I make Samba4 running on a different server be in the same
> domain, have the same users etc.?

I presume you mean mixing both Samba3 and Samba4 domain controllers in
one domain? This is not possible. Any upgrade to samba4 would prevent
you running a Samba3 DC. We don't support 'mixed mode' like that.

We also don't support hosting Samba4 on a 'unix like' LDAP server
layout. The schema is the AD schema. (FreeIPA is trying to create a
setup with a unix-like schema, but you will have to ask them about their

We also don't yet have good upgrade scripts from Samba3. It can be
done, but a lot of the task will be manual.


Andrew Bartlett

-- Andrew Bartlett Authentication Developer, Samba Team Samba Developer, Cisco Inc.

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