[Samba] pdbedit dump core

[Rowland Penny]

On Wed, 2021-09-22 at 15:26 +0200, Jacques Beigbeder wrote:
> You are kind to investigate!
> 
> > > Yes, nothing in Samba should have segmentation faults,
> 
> We had SEGV 20 years ago! Today, we should have error messages.
> No more.
> I have Ubuntu 20.04 up-to-date that is:
> 	ii  samba  2:4.11.6+dfsg-0ubuntu1.10 amd64 SMB/CIFS file,
> print, and login server for Unix    
> 
> 
> > > ... but I would
> > > still like to know just what the OP is trying to do, there may be
> > > a
> > > better way of doing it.
> 
> I have 30 years of Unixes, Solaris, FreeBSD, now Linux and Ubuntu.
> samba and Windows are not my speciality. So a better way? May be...

Are you attempting to upgrade a Samba NT4-style domain (PDC) to a Samba
AD domain ?, if so, are you aware of the classicupgrade option for
'samba-tool domain' ? This takes your old domain and upgrades it to an
AD domain.

> 
> I had an old Samba 3 installation with /etc/samba/smbpasswd
> and Windows 7.
> 
> I want to migrate to Samba 4 + Windows 10.
> I known how to do with 20 users: Windows 10 authenticate
> with Samba4, Windows connect drives on D: or E:.
> 
> I fail to migrate not 20 but 3300 entries from
> the old /etc/samba/smbpasswd.
> My idea was:
> 	3300 times samba-tool user create ...
> but it fails to restore passwords... for the last 800 users.

I do not think your method is going to work, the 'passwords' that
pdbedit is producing are hashes of password and 'samba-tool user
create' requires the plain password, it also doesn't help that AD uses
a different hash.

Rowland