Hi, I have the following problem : I have +- 400 Users in LDAP. They are all Samba users and all have the objectclasses : account posixAccount top shadowAccount sambaSamAccount When I try to add a machine account, I first make a useradd -g -d /dev/null -c machine$ -s /bin/false 100 machine$ after that I make smbpasswd -a -m machine But the I receive the error when executin "smbpasswd -a -m machine" : "SID 'S-1-5-...-31008' already in base, with samba attributes" When I browse the LDAP tree I find a user with this sambaSID. How is it possible to change the procedure in order to directly add a user or machineaccount without using "useradd" and that the sambaSID is a unique string ?? Thanks Georges Goebel