Hello, I followed the steps outlined in an article on this site to configure samba as a domain contoller on an Ubuntu server 6.x system The tutuorial is great, and I was able to ad my WinXP professional system easily and as advertised. Now, I have two Max OS X 10.4 systems that I can't bind to the domain on the ubuntu box...I get an error that the domain can't be found. I use the samba PDC to manage the ACL, so I don't have openLDAP installed. Also, I don't have a DNS behind the firewall, I point to my ISP's DNS. FYI: I use the Directory Access GUI to attempt the binding...should I be using command line? Any ideas? joe