[Samba] authentication issues

[steve]

On Sun, 2013-10-20 at 10:13 +0200, antonello wrote:
> I've set up a system with a zentyal 3.0.26 samba 4 server.
> I've got win7, winXP, ubuntu 12.04 clients.
> Users log on the win clients correctly.
> On linux clients when users log on the second time I got a warning 
> message saying that the password will expire and have to be changed in  
> a short period of time and the system hangs, thus not logging in.
> I don't want password to have any expiration time, but I couldn't find 
> where to set this feature on the zentyal dashboard.
> Moreover, I don't have this issue on the windows clients, so I may think 
> that the issue is due to the linux system on the client side. Still I 
> don't know how to cope with it.
> 
> Antonello

Hi
Yeah, I know that one. It's really annoying. If I remember correctly,
that message comes from pam winbind:
warn_pwd_expire

Have a look at:
http://www.samba.org/samba/docs/man/manpages/pam_winbind.conf.5.html

HTH
Steve