-- Hello, Can you help me? I want use Samba 3 with Ldap, but I don't know. - The configuration of samba in PDC without ldap is ok - Ldap is ok I don't know what I write in the smb.conf for use Samba with Ldap authentification. passwd backend ??? passwd program ??? [global] workgroup = SIAL_TEST netbios name = MSNT2 server string = sial_pdc obey pam restrictions = Yes passdb backend = tdbsam, guest, ldap://172.29.143.5:389 passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n . syslog = 3 log file = /var/log/samba/log.%m max log size = 1000 logon script = logon.cmd logon path = \\%N\profiles\%u logon home = \\msnt2\%u ####### # PDC # ####### domain logons = Yes os level = 65 preferred master = Yes domain master = Yes dns proxy = No ######## # LDAP # ######## ldap suffix = dc=in,dc=ac-lille,dc=fr ldap machine suffix = ou=machines,o=sial,dc=in,dc=ac-lille,dc=fr ldap user suffix = ou=utilisateurs,o=sial,dc=in,dc=ac-lille,dc=fr ldap group suffix = dc=in,dc=ac-lille,dc=fr ldap idmap suffix = dc=in,dc=ac-lille,dc=fr ldap admin dn = cn=admin,dc=in,dc=ac-lille,dc=fr ldap ssl = no panic action = /usr/share/samba/panic-action %d invalid users = root admin users = administrateur thank you .