Hi, I was able to get my server in the domain. I can see it from ADUC and Network Places. But I can't get it to use AD to authenticate the users that want to access the server/share. Wbinfo -u and -g return the users and group of my MONTREAL domain. Net ads info also returns the correct information about my domain. I then tried to run getent passwd but that only returned the list of the local account. Content of /etc/nsswitch.conf: passwd: files windbind shadow: files windbind group: files windbind hosts: files dns wins The rest are set as files. I tried to remove files in passwd, shadow and group but when I ran getent passwd it returned nothing. I then replaced windbind with compat and got the same result. What should I do about that? And what else should I check? Found this in the doc: -- Do not forget to specify also the ldap admin dn and to make certain to set the LDAP administrative password into the secrets.tdb using: root# smbpasswd -w ldap-admin-password In place of ldap-admin-password, substitute the LDAP administration password for your system. -- I assume that this is the password of Administrator? I did that with the password of Administrator. And if I got this right, to allow users to access a share from a group I need to put a @ first? For example: valid users = @MONTREAL\Domain Users I'm running Samba 3.0.10-1.4E.6 on CentOS 4.3. The clients would be Windows machines. I'm about to give up and just create a bunch of local users :/ If you need to know more details, just let me know. Thanks! Simon