This boolean parameter controls whether Samba can grant SMB2 durable file handles on a share. Note that durable handles are only enabled if no, no, and no, i.e. if the share is configured for CIFS/SMB2 only access, not supporting interoperability features with local UNIX processes or NFS operations. Also note that, for the time being, durability is not granted for a handle that has the delete on close flag set. yes