[Samba] Change AD user password from Linux

[Masao Garcia]

John,

Thanks for the reply.  I edited my common-password file like yours and now I
am prompted to enter the user's current password but after that, it gives me
the "User not known to the underlying authentication module" error.
Auth.log now gives me:

pam_winbind(passwd:chauthtok): getting password (0x00000020)
Jan 20 15:15:33 LTSP2 passwd[6505]: pam_winbind(passwd:chauthtok): request
failed: Named pipe dicconnected, PAM error was System error (4), NT error
was NT_STATUS_PIPE_DISCONNECTED
Jan 20 15:15:33 LTSP2 passwd[6505]: pam_winbind(passwd:chauthtok): internal
module error (retval = 4, user = 'idyson')
Jan 20 15:15:33 LTSP2 passwd[6505]: pam_unix(passwd:chauthtok): user
"idyson" does not exist in /etc/passwd

I forgot to include my /etc/nsswitch.conf file:
passwd: files winbind
group: files winbind
shadow: files

hosts:          files dns
networks:       files

protocols:      db files
services:       db files
ethers:         db files
rpc:            db files

netgroup:       files ldap

-----Original Message-----
From: john [mailto:lists.john at gmail.com] 
Sent: Wednesday, January 20, 2010 2:16 PM
To: Masao Garcia
Cc: samba at lists.samba.org
Subject: Re: [Samba] Change AD user password from Linux

Hi Masao,

I have essentially the same setup as you (ltsp, AD, Winbind). My users
are able to change their passwords with the 'passwd' command.

Here's the contents of

/etc/pam.d/common-password file

password        sufficient      pam_winbind.so
password   required   pam_unix.so nullok obscure min=4 max=8 md5

Hth,

John