[Samba] Windows users can't change password 4.1.6

[Michał Półrolniczak]

Hello Marc,

W dniu 2015-01-22 o 20:17, Marc Muehlfeld pisze:
> Hello Michał,
>
> Am 22.01.2015 um 07:13 schrieb Michał Półrolniczak:
>> When GPO tells you to change password after 30days, or you want to
>> change it; ...
>
> At first: You can't define password policies via GPO, because they have
> to be interpreted by the domain controller(s) and Samba doesn't know
> anything about GPOs and what to do with them. Set password stuff domain
> wide via 'samba-tool domain passwordsettings'.
>
> https://wiki.samba.org/index.php/FAQ#Is_it_possible_to_set_user_specific_password_policies_in_Samba4_.28e._g._on_a_OU-base.29.3F
>

I understand. I change local GPO on each station so it bypass the GPO 
which dont work like you said. Thats why it force users to change 
password after 30 days.
>
> To find out, if there's another problem, we have to know more about the
> situation: Does the password change says that it was successfully? What
> do the logs say about the password change and when the user tries to
> logon with the new password? And is the password usable, if you change
> it via samba-tool/ADUC?
>
>
> Regards,
> Marc
>

When changing password via Windows Logon it doesn't say it change it, it 
say that new password that I entered is not valid with password politic 
settings, and wasn't change.
But if you try to change the old password once more (even with the same 
password you enter right before) it say that the user name or password 
is invalid.
And you can not log anymore using old or new password.

Which log should I lookup when changing password? any specific command 
to use it in debug mode? Im using the ubuntu repo samba 4.1.6