Hi everybody!

I am having an issue regarding my pam configuration. I am trying to sync my unix/samba passwords, but everything i found online doesn't help. 

My System runs Gentoo/Samba 3.5.8 as PDC(roaming profiles host and so on) , and WinXP Clients. Domainjoin and Login work fine. But I want to change the Passwords from the Windows interface.  When I try to change the password using the Windows "change password" dialog. I get an error saying that i don't have permissions to do so. It works fine from the Unixshell.

Samba log looks like:

[2011/03/23 12:06:05.149471, 2] auth/auth.c:304(check_ntlm_password)
  check_ntlm_password: authentication for user [xx] -> [xx] -> [xx] succeeded 
[2011/03/23 12:06:05.152839, 0] auth/pampass.c:699(smb_pam_chauthtok)
PAM: User not known to PAM
[2011/03/23 12:06:05.152863, 2] auth/pampass.c:77(smb_pam_error_handler)
smb_pam_error_handler: PAM: Password Change Failed : User not known to the underlying authentication module
[2011/03/23 12:06:05.152873, 0] auth/pampass.c:861(smb_pam_passchange)
  smb_pam_passchange: PAM: Password Change Failed for user xx! 
[2011/03/23 12:06:05.156622, 0] auth/pampass.c:699(smb_pam_chauthtok)
PAM: User not known to PAM
[2011/03/23 12:06:05.156637, 2] auth/pampass.c:77(smb_pam_error_handler)
smb_pam_error_handler: PAM: Password Change Failed : User not known to the underlying authentication module
[2011/03/23 12:06:05.156650, 0] auth/pampass.c:861(smb_pam_passchange)
  smb_pam_passchange: PAM: Password Change Failed for user xx! 
[2011/03/23 12:06:05.162118, 0] auth/pampass.c:699(smb_pam_chauthtok)
PAM: User not known to PAM
[2011/03/23 12:06:05.162133, 2] auth/pampass.c:77(smb_pam_error_handler)
smb_pam_error_handler: PAM: Password Change Failed : User not known to the underlying authentication module
[2011/03/23 12:06:05.162143, 0] auth/pampass.c:861(smb_pam_passchange)
  smb_pam_passchange: PAM: Password Change Failed for xx! 
[2011/03/23 12:06:05.165908, 0] auth/pampass.c:699(smb_pam_chauthtok)
PAM: User not known to PAM
[2011/03/23 12:06:05.165923, 2] auth/pampass.c:77(smb_pam_error_handler)
smb_pam_error_handler: PAM: Password Change Failed : User not known to the underlying authentication module
[2011/03/23 12:06:05.165932, 0] auth/pampass.c:861(smb_pam_passchange)
  smb_pam_passchange: PAM: Password Change Failed for user xx!

my smb.conf looks like:

unix password sync = yes
pam password change = yes
passwd program = /usr/bin/passwd %u
passwd chat = *New*password* %n\n *Re*ype*new*password* %n\n \
*passwd:*all*authentication*tokens*updated*successfully*

my pam-files look like:

samba:

<at> include system-auth

<at> include system-password

auth required pam_smbpass.so nodelay
account include system-auth
session include system-auth
password required pam_smbpass.so nodelay smbconf=/etc/samba/smb.conf

system-auth

auth required pam_env.so
auth required pam_unix.so try_first_pass likeauth nullok
auth optional pam_permit.so
auth optional pam_smbpass.so migrate

account required pam_unix.so
account optional pam_permit.so

password required pam_cracklib.so difok=2 minlen=8 dcredit=2 ocredit=2 retry=3
password required pam_unix.so try_first_pass use_authtok nullok sha512 shadow
password optional pam_permit.so
password required pam_smbpass.so nullok use_authok try_first_pass

session required pam_limits.so
session required pam_env.so
session required pam_unix.so
session optional pam_permit.so

system-password:

password requisite pam_unix.so nullok obscure min=4 max=8 md5
password required pam_smbpass.so nullok try_first_pass

Thanks kindly!

Best regards,

Markus