Hello. I have readed in several places people writing something like that when setting up a PDC: now you need to join it to the domain: net rpc join -Uadminuser%adminpass One of them is the article "Configuration with the net utility, part 2", by John Terpstra http://searchopensource.techtarget.com/tip/1,289483,sid39_gci1155693,00.html (I dont have sure if to read searchopensource someone needs to register) I didnt found any explanation on WHY this is needed. It is really needed? So, reading "Samba by Example" I found something else at Chapter 5, Procedure 5.8, Step 21: http://samba.org/samba/docs/man/Samba-Guide/happy.html#id2544570 ... The next step might seem a little odd at this point, but take note that you are about to start *winbindd*, which must be able to authenticate to the PDC via the localhost interface with the *smbd* process. This account can be easily created by joining the PDC to the domain by executing the following command: root# net rpc join -S MASSIVE -U root%not24get ... Have it something to do with that? Its only needed when using winbind? And in that case why winbind is beeing used? Regards. Edmundo Valle Neto