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:
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NIS
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LDAP
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Kerberos 5
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Hesiod
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SMB
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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 the Red Hat Enterprise Linux Deployment Guide for more information about the options.
