[Samba] Voluntary Windows password change

[Sanjiv Bawa]

How does a user voluntarily change a password with Windows and Samba? Can
this even be done.

Someone mentioned that a password expiration has to be done at the PAM layer
which is fine. But if I cause the expiration, how does the user get informed
and then change the password?

I want to implement regular password expiration and also first use password
expiration.

Thanks.