nsswitch Map
The nsswitch map is used to request that the home
directory be obtained from a password database, such as the local, NIS, or
LDAP database. If an AD path is appended, it is used to publish
shares.
+nsswitch
Like the asterisk wildcard entry, the nsswitch map is
searched only if an appropriate rule is not matched by
another map entry.
Note:
The wildcard andnsswitch rules are mutually
exclusive. Do not include an nsswitch rule if a
wildcard rule has already been defined.