Define the NAS authentication information that is required to access the shared folders in this product from the backup server.
Similar to CSG Web GUI/CSG REST API users, you can select either a local authentication user (the method of defining a user for accessing the NAS) or an external authentication user (the method of using LDAP servers or AD servers).
If you use the procedure described in "2.6 Setting CSG Web GUI / CSG REST API Users" to define an authentication server, the authentication server is also used for NAS authentication.
