[Samba] Re: How to migrate a complex NT4 network

[Raphaël Berghmans]

On Thu, 2003-11-27 at 20:49, John H Terpstra wrote:
> On Thu, 27 Nov 2003, [ISO-8859-1] Raphaël Berghmans wrote:
> 
> > On Thu, 2003-11-27 at 19:55, John H Terpstra wrote:
> > > On Thu, 27 Nov 2003, [ISO-8859-1] Raphaël Berghmans wrote:
> > >
> > > > Hi,
> > > >
> > > >
> > > > We have on a central site a NT4 PDC and a NT4 BDC and on 6 secondary
> > > > sites we have a BDC on each site (the authentication for the
> > > > workstations on those remotes sites occurs on the local BDC and not on
> > > > PDC).
> > > >
> > > > Which could be the best way to migrate this environment to a
> > > > SAMBA-3.0.0/LDAP environment. But we cannot intervene on each 1600
> > > > workstations. Then the migration has to be the most transparently as
> > > > possible for the users.
> > >
> > > Your configuration is typical of many. The samba-3 migration facility (net
> > > rpc vampire) should work fine. You should be able to run it against the
> > > local BDC - though I have not tested that.
> >
> > Indeed the SAM migration is very simple with vampire. But Samba cannot
> > made realtime synchronization with a NT4 PDC and how to manage the
> > modifications. Made a vampire each time a modification has been done on
> > the PDC is a little bit tricky (with 1600 users, 500 groups and 1700
> > machines).
> 
> We have documented the fact that Samba-3 can not be a BDC to an NT4 PDC.
> Sorry. If yu want to use Samba as a BDC then your PDC must be Samba also.

I know it's well documented but if I migrate my NT4 PDC to a samba PDC,
I still have some NT4 BDC's and then there is always a synchronization
problem :)

Then the only ways to do that are :

First way : Manage a new samba domain and migrate manualy each
workstation

Second way : Migrate the NT4 PDC to Samba and stop all NT4 BDC's (all
the authentications and profiles managment will be done on the PDC). And
migrate the BDC one by one. (Physicaly It's not possible on the same
time to migrate the PDC and all the BDC's)

See you,


> 
> - John T.
> 
> > >
> > > If you need help just ask. I am writing a follow up book to the
> > > Samba-HOWTO-Collection (The Official Samba-3 HOWTO and Reference Guide)
> > > called "Samba-3 by Example" and will have a chapter in there that will
> > > provide detailed presecriptive guidance on the migration process.
> > >
> > > If you like we could use your migration opportunity as the basis for the
> > > case study in the book.
> > >
> > > - John T.
> >
> >
-- 
Raphaël Berghmans
Arafox scrl
Avenue Léon Champagne, 2
1480 Tubize
Tél: 023914551
Fax: 023914542