[Samba] Migration From 3.0.22 to 3.0.28a on New Hardware

Adam Williams awilliam at mdah.state.ms.us
Fri May 23 14:07:14 GMT 2008

are you using DHCP?  and net login scripts in samba?  just change the 
WINS server in DHCP.  move over all of the .tdb files, make sure the new 
server has the same domain sid.  have the netlogon scipts unmount their 
shares and remount them to the new server.

Nick Webb wrote:
> Hey All,
> I'm pretty new to complex Samba setups, but have used the more basic 
> distro settings a lot over the past few years; many thanks for all the 
> solid code.
> Anyway, where I work I'm faced with moving a samba PDC from one server 
> to another.  The backend password database is in LDAP, so I think that 
> makes it easier?  The current server is aging (4-5 years old) and is 
> low on disk space, necessitating the move.  However, the old server is 
> still used for email and telephony, so it needs to stay on the network 
> with the current name (say server1.mycompany.net).  I plan on turning 
> Samba off on this server after the migration is complete.
> We've got about 25 Windows XP Pro desktops on the domain and obviously 
> I don't want to change anything on them.  The users are accessing 
> shares on this server with \\server1\sharename and many have different 
> shares mapped in their profiles.
> So I'm trying to figure out what the easiest way of getting things 
> onto the never server are without disrupting users?  My first thought 
> is that, while confusing, it should be possible to just move 
> everything over to the new server and call it server1 (via 
> NetBIOS/WINS) even though it's DNS name is server2.mycompany.net?  
> That way all the users' mapped drives work as they should (as the name 
> is the same), but I hear this can cause some name resolution issues?
> I suppose the other approach is to call the new samba server something 
> different (but of course the same domain name).  Maybe even give it 
> the NetBIOS name of FileShare or something else service based so if it 
> ever has to move again the naming convention makes sense.  If I went 
> this route I'd have to change all the users' mapped drives, and 
> hopefully there's a way to do this on the server side?  Will the 
> desktops successfully login to the samba server if it's renamed?
> Yet another thought is adding the new server as a BDC, moving the 
> share data over to it, and either promoting the BDC to a PDC or just 
> let them both run with the PDC serving logins but no real data.  Then 
> if the PDC dies, I'd presume there is a procedure to promote the BDC 
> to a PDC?
> Thanks for the help, I want to make sure I go down the right road on 
> this architecturally before I start hacking.
> Nick
> PS:  I'm using Ubuntu if that helps (migrating from 6.06LTS server to 
> 8.04LTS).

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