Hi, all I've configured a samba server with smbpasswd backend that worked fine. I've used "net group add" command and it works too. So, I've changed my backend to ldapsam, modifying the following lines in my smb.conf: changed this: passdb backend = smbpasswd, guest to this: passdb backend = ldapsam:ldap://localhost, guest And I've added the lines: ldap admin dn = cn=master,dc=xxx,dc=yyy ldap delete dn = no ldap suffix = dc=xxx,dc=yyy ldap user suffix = dc=zzz ldap machine suffix = dc=machine,dc=zzz ldap group suffix = dc=groups,dc=zzz PS.: My ldap server has been configured correctly When I type the command "net groupmap list" I can't see any group (of course, because I haven't added). But when I type "net group add SomeGroup -U root", password is prompted, but I can type any password I want, that samba doesn't give any kind of message (success or error), and the group has not been added! Is command net fully implemented with ldap backend? Thanks, in advance!