[Samba] PDC migration from samba-tng to samba 3

Andrew Bartlett abartlet at samba.org
Thu Apr 1 23:10:40 GMT 2004

On Fri, 2004-04-02 at 05:05, Scott Hanson wrote:
> Hello,
> I have inherited a samba-tng PDC (without ldap) that I am to upgrade to 
> samba 3. My first attempt failed miserably. I copied over the smbpasswd 
> and the domain SID, users were able to log in, but most were not able to 
> load their profiles.
> I think I have to copy over machine IDs, but I'm not sure how to 
> proceed. The migration section of the the howto doesn't seem to apply to 
> tng at all. Any tips or pointers on how to proceed?

The problem is almost certainly that the the RID portion of thier SID
has changed.

This is because Samba-TNG sets it's algorithmic rid system to use:

/* Take the bottom bits. */

Samba.org has always used a value of 2.  To fix this, figure out the
user's real RID

== (uid * RID_MULTIPLIER)+1000

and move your passdb to LDAP (pdb_ldap), where you can set the value
explicitly (sambaSid).  Samba 3.0 will then honour the existing SIDs, in
the same way is honours sids from an NT domain migration.

Andrew Bartlett

Andrew Bartlett                                 abartlet at pcug.org.au
Manager, Authentication Subsystems, Samba Team  abartlet at samba.org
Student Network Administrator, Hawker College   abartlet at hawkerc.net
http://samba.org     http://build.samba.org     http://hawkerc.net
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