d2565778 ) it seems that a BDC can be configured only with a LDAP backend.
> if not you may have to make the
> new
> server a PDC.
I don't think I can run 2 PDCs on the same Domain , right ?
> - Copy the samba private directory (with the tdb files) from the 1st
> server to the 2nd server. In effect, this temporarily syncs the two
> servers.
Is it sufficient ? Do I have to set the local SID of the BDC as the value of
the PDC's SID ?
i.e. :
[oldserver$]net getlocalsid
-> <value>
...
[newserver$]net setlocalsid <value>
> - promote the new server to PDC and the old server to BDC.
> - after hours- move the shared directories to the BDC, update login
> script if necessary.
By "After hours" , do you mean after some sufficient long delay (one
day ?)
for everyclient to have authenticated with the BDC ?
>
> Clients will connect to either a PDC or a BDC for authentication.- it
> doesn't really matter that much except that clients will prefer a BDC
> if
> available.
>
> Once you take the OLD server offline you may need to have clients
> reboot to
> have them use the new server for authentication. But at least domain
> membership will not be broken?
This is not a problem, I can easily ask all users to reboot.
>
> Are you using a WINS server?
Yes , samba is also WINS server. Is it important ?
I will have to make some heavy testing before doing the actual migration.
Having 200 clients breaking their Domain membership will be some kind of a
disaster :-( .
Thanks a lot for your help. Any additional information welcome.
Henri
>
> -----Original Message-----
> From: samba-bounces at lists.samba.org [mailto:samba-
> bounces at lists.samba.org]
> On Behalf Of henri
> Sent: Wednesday, January 12, 2011 7:26 AM
> To: samba at lists.samba.org
> Subject: [Samba] Samba migration to a new server
>
> Hi all,
>
> Is it possible to migrate Samba to a new server without breaking
> Domain
> membership of all the clients ?
>
> I didn't get any info on that issue, is there someone that has
> previous
> experience of doing that ? Or maybe a link to some relevant info ?
>
> I have currently a Samba 3.5.6 server that acts as a PDC and print
> Server,
> with tdbsam backend, no LDAP at all, no roaming profile. I have to
> migrate
> samba to a new server. Everything (Samba release, Domain Name, shares,
> ...)
> will remain the same except for the DNS name and IP address of the
> server,
> and the samba server netbios name.
>
> What is the best way to proceed to make this migration as seamless as
> possible for all users (more than 200 user accounts with more than 200
> PC in
> the domain) ? I guess that just moving all the samba configuration
> files
> from the old machine to the new one will not be enough.
>
> Thanks in advance. I really need your help.
>
> Henri
>
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