In the details pane, right-click the directory for which you
want to set permissions.
Click Sharing.
Click NFS Sharing, and then, if the folder has not
already been shared, click Share this folder.
Click Permissions.
Click the client or group for which you want to set
permissions.
In the Type of Access list, click the type of access you
want to allow the client or group.
Select Allow Root Access if you want a user identified
as root to have access other than as an anonymous user. By default,
the user identifier (UID) root user is coerced to the anonymous
UID.
In the Encoding list, click the type of directory- and
file-name encoding to be provided to the client or group.