CIFS Access User
From OSNEXUS Online Documentation Site
Creating CIFS only Role
Roles can be used to limit a user to CIFS access only. A new Role called CIFS Access can be created without any administration permissions.
Right-click in the Roles section in the Users & Groups tab and select Create Role
Name the new role CIFS Access and leave all of the Permission Scopes set to None
Creating Users
Now this role will be available when creating new users.