I have here a working scenario with Squid using ntlm + ldap_groups to make single sign on plus access control based in wich Active Directory group user is. But, have anyone done any experience with Samba4? Then I think I cold replicate Microsoft Active Directory data with Samba and make the auth local. Because you know, microsoft crashes a lot, and, if I have a replica of user information in Samba4 I can survive on windows crashes... Anyone? -- Att... Ricardo Felipe Klein klein.rfk@xxxxxxxxx