Iam trying (being the operative word to setup winbind to authenticiate my linux box against a NT PDC, which out much sucess so far). It looks like the problem could be to do with the pam setup. Iam curently running samba-2.2.2-8 and pam-0.75-18.7 on RH 7.1. Iam not sure what exactually to enter in the fileds to enable the winbindd to use pam correctly. from the winbind FAQ, it states the following: In /etc/pam.d/* replace the auth lines with something like this: auth required /lib/security/pam_securetty.so auth required /lib/security/pam_nologin.so auth sufficient /lib/security/pam_winbind.so auth required /lib/security/pam_pwdb.so use_first_pass shadow nullok Note in particular the use of the sufficient keyword and the use_first_pass keyword. Now replace the account lines with this: account required /lib/security/pam_winbind.so and Ive tried this and I don't think its working correctly, could anyone possably help he out or advice me what would/should go where. Thanks in advance Mark