we are having a samba-3.0.1 sever with ldap as backend. The ldap runs in a remote machine and samba doesnot have problems in connecting to it or maintaining account in it. samba runs as a pdc. When i try to add a windows machine to the domain it throws error as "no mapping between account names and security id was done". But when samba is installed in the same machine in which ldap runs then it works fine and authenticates the window users. why this is so ? should i change anything samba for this problem. This is urgent .Please help __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com