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Re: [Samba] FW: LDAP getent issues




Hi Rowland,

If we need to shut the NT4 PDC down after the migration it makes a lot of sense to separate the roles of the existing NT4 PDC. Hence why we are adding a new Samba box with a view that it becomes the PDC and the existing PDC become a member server. The main reasons is that it has a lot of files which cannot be moved easily.

So the question is with the new PDC we stick with TDB? Separate the roles, migrate to AD and shut the PDC down. Then join the member server to AD.

Sorry about the confusion.



Regards,

Praveen Ghimire


-------- Original message --------
From: Rowland Penny <rpenny@xxxxxxxxx>
Date: 8/04/2018 8:19 PM (GMT+10:00)
To: Praveen Ghimire <PGhimire@xxxxxxxxxxxxxx>
Cc: samba@xxxxxxxxxxxxxxx
Subject: Re: [Samba] FW: LDAP getent issues

On Sun, 8 Apr 2018 09:05:46 +0000
Praveen Ghimire <PGhimire@xxxxxxxxxxxxxx> wrote:

> Hi Rowland,
>
> I have gone through that link a few times and have done both the  TDB
> to AD and also LDAP to AD migration a few times.
>
> The AD migration is the second stage.
>
> Let me explain the situation.  The Production server is a Samba 3 box
> which acts as the DC (TDB) and file share. We decided to to add a
> Samba 4 box to that classic domain and make it a PDC.  Having gone
> through various documents , which suggested to not use TDB for a PDC
> BDC setup, we are looking at using LDAP.  The plan is to make the old
> PDC a member server as it still has all the files.

I repeat, you do not need to move to LDAP before the upgrade to AD. All
you are doing is adding an LDAP PDC to the domain and after you upgrade
to AD, you will have an AD DC using the same workgroup name and SID
as the NT4-style PDC and you will then have turn the PDC off (Note: I
am referring to the NT4-style PDC, not the AD DC. An AD DC should NEVER
be referred to as a PDC.), you cannot have an NT4-style PDC and an AD
DC with the same SID in the same domain.

>
> The adding new box and making it a PDC using LDAP works.
> Authentication of the users who were in TDB works too. The issue is
> any newly created users in LDAP. Hence the question.

If you are upgrading to AD, you do not need to bother about any other
Unix machines, just alter the smb.conf (for info, see here:
https://wiki.samba.org/index.php/Setting_up_Samba_as_a_Domain_Member )
to be an AD Unix domain member and join them to the new AD domain, it
will work.

Rowland

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