In the Authentication section, select whether to
use shadow passwords and MD5 encryption for user passwords. These
options are highly recommended and chosen by default.
The Authentication Configuration options allow you
to configure the following methods of authentication:
NIS
LDAP
Kerberos 5
Hesiod
SMB
Name Switch Cache
These methods are not enabled by default. To enable one or more of these
methods, click the appropriate tab, click the checkbox next to
Enable, and enter the appropriate information for
the authentication method. Refer to Chapter 27 Authentication Configuration for
more information about the options.