Where can I read an uptodate description of samba file locking? I ask because the text doc seems out of date (says there are no oplocks in samba.) Some observations about locking problems: You can bypass samba and edit files directly in linux, even though they are locked by a windows application via samba. Could this cause data corruption. Is this an argument against using NFS with samba? If you are careful and always use samba to call up such files, then locking seems to work. Some applications, like paint, don't lock the file, thereby allowing multiple users to edit the file simulataneously. Is there a way to stop this using samba? Thanks, Joel