I posed this question to the user group a couple of days ago; I have a Samba server (version 2.2.8) running as a PDC. I have just setup another Samba server and don't want to setup a smbpasswd file on this machine. I simply want all authentication of usernames/passwords to be done on the PDC. Do I use security = server or security = domain? A couple of you respond (thank you) and suggested I used security = domain. I now have another question; If I have W98 machines on my network will this setting work with such machines? Martin Stacey IT Support Manager Safcol Australia Pty Ltd