[Samba] Samba User password problem

Nick Pappin npappin at devnada.com
Thu May 14 16:45:00 GMT 2009

The first problem I think you are running into is you are using a smbpasswd
backend. Unfortunatly this doesn't have the support for the attributes you
need to run a domain. To fix this you need to be running a TDBSAM backend.
You would probably find the samba 3 by example handy, (
http://us1.samba.org/samba/docs/man/Samba-Guide/) and the offical howto (

On Wed, May 13, 2009 at 11:52 PM, Chris Roubekas <croubekas at gmail.com>wrote:

> Dear list,
> I have recently installed Ubuntu 8.04 Server on a machine which I want to
> be
> a domain controler for a small network of 5 PCs, each of them running WinXP
> Pro SP2.
> I have read and followed all the instructions on Samba's site and have
> generated machine trust accounts and usernames/passwords for the users of
> the local net. There is no firewall installed on Ubuntu.
> Althought I have done this task a few times by now for various networks,
> the
> odd thing about this installation is that the passwords that the users use
> keep "reseting", meaning that although I set the passwords for them with
> smbpasswd -a username and then input their passwords and the users do not
> change them, after a few successful logins, WinXP complains that
> username/password might be incorect.
> What I have done that seems to work is to execute a "smbpasswd username"
> and
> place the same passwd again which seems to solve the issue, but for only a
> few logins.
> I have tried to re-join the computers to the domain and the process of
> joining runs smoothly without any errors. However after a few logins, the
> problem prevails.
> Samba version is 3.0.28a.
> Passwd backend is smbpasswd.
> Any help would be greatly appreciated as this server is a production server
> and users keep sending requests that their passwds don't work and I have
> re-set their passwords almost on a daily basis.
> Thank you !!
> Chris
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