Besides using this -S option with smbpasswd to clone an NT4 PDC's SID, what else needs to be done, or can be done, if anything, when migrating to a Samba server to maintain the current domain users with the same profiles. I'm concerned that the users will not be the "same" users even though the SID for the PDC remains the same. Are there a UID's, GID's, or something else that needs to be captured or transferred as well? Thanks. Chris -- 'Nix MS - Just Say .NyET