Hi I'm using Samba in a mixed environment, a large network (~10000 users) using both unix and Windows. I've been playing with 'winbindd' to get around its current limitations (ie the fact that the mapping from RID->UID is dynamic and uncontrollable). I think that I have this partially working now. If anyone else is interested, please have a look at: http://www.lancs.ac.uk/~steveb/samba -- Steve Bennett Systems Support, Lancaster University