User passwords domain/samba

We have setup a domain in our network and we want the user passwords to expire every X days, however we do not want to have to manually change the samba share passwords for our linux file server.

Is there a way that when a users Windows (domain) password is changed that the new password can be sent to samba so they can still access the file server?
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revo1059Asked:
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Leon FesterSenior Solutions ArchitectCommented:
I've worked at a few environment which had the same requirements for password changes, but never did we have to sync passwords to SAMBA.
I'm no *nix specialist but you should look into Windows and SAMBA integration.
That way your SAMBA will use AD for authentication and can query AD directly.

I think they discuss it in this post.
http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/0d5620db-8130-4b9b-90c2-2ee4ae367893/
1ly4meCommented:
Samba with windows can be configured in two ways.
1. standalone server (Act as main DC)
2. As a domain member (Samba can authenticate users based on main DC in the domain)
However in your scenario the first option will not help, because I assume you have windows as main DC.
In the second option, you can join samba server to domain network, and samba can authenticate users based on windows DC. Whenever Samba try to authenticate, it will contact main DC for username/password match.
(I think you want to setup both windows and samba as domain controllers?)
revo1059Author Commented:
Option #2 sounds like a winner, I just need direction on how to implement it.
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1ly4meCommented:
Are you using command based samba or GUI?
revo1059Author Commented:
I can use either.
1ly4meCommented:
Run,
#authconfig-tui and select winbind and  kerberos authentication.
In the next step enter appropriate details of your domain
The next step might to be enter details for winbind settings,
select domain as a security model, finally join the domain.
Make sure the samba global configuration is like below,
workgroup = EXAMPLE
   password server = dc.example.com
   realm = example.com
   security = domain
   idmap uid = 16777216-33554431
   idmap gid = 16777216-33554431
   template shell = /sbin/nologin
   winbind use default domain = false
   winbind offline logon = false

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