Hello, The network configuration will be as follows : - clients PC are Windows 2000 or Windows 98, - domain controler is Active Directory of Windows 2000 - SAMBA server is used for file sharing and printings I read it is possible to create user accounts only into an Active Directory PDC so as to be taken into account by a SAMBA server (using SAMBA 2.2.2 and winbind). The questions are then as follows : 1) does this mechanism offers SSO functionnality or users have to be authentified twice : - first time at login (network authentication through the PDC) - then when having first access to the SAMBA server ? 2) if it is not SSO, is SSO possible ? 3) how to initially configure sharing resources to users and groups if the users and groups do not initially exist on the Linux system ? 4) what about users rights ? - does Active Directory manages accounts with all its Windows possible privileges and restrictions ? - what is the resulting ACL (Windows ACL or only the Linux ones "rwx") ? - ACL is managed by Windows or Linux ? Looking forward to hearing from you, Yours sincerely. Eric Huaume