This is a boolean that controls the handling of file locking in the server. When this is set to yes, the server will check every read and write access for file locks, and deny access if locks exist. This can be slow on some systems. When strict locking is disabled, the server performs file lock checks only when the client explicitly asks for them. Well-behaved clients always ask for lock checks when it is important. So in the vast majority of cases, strict locking = no is acceptable. yes