SMB Dialects
You can control the dialects supported by the Fusion File Share server using the global configuration setting, ‘dialects’:
dialects = SMB2.002 SMB2.1 SMB3.0 SMB3.02 SMB3.1.1
If you want to limit the supported protocol versions available to clients, just remove them from the list (we exclude SMB2.002 below):
dialects = SMB2.1 SMB3.0 SMB3.02 SMB3.1.1