Red Hat Linux Itanium 7.2 Manuale Utente Scaricare il pdf (Pagina 52)

52 Chapter 3:Installing Red Hat Linux

Figure 3–15 Authentication Configuration

• Enable MD5 passwords — allows a long password to be used (up to 256 characters), instead of

the standard eight letters or less.

•

Enable shadow passwords — provides a secure method for retaining passwords. The passwords

are stored in /etc/shadow, which can only be read by root.

•

Enable NIS — allows you to run a group of computers in the same Network Information Service

domain with a common password and group file. You can choose from the following two options:

–

NIS Domain — allows you to specify the domain or group of computers your system belongs

to.

–

Use broadcast to find NIS server — allows you to broadcast a message to your local area

network to find an available NIS server.

–

NIS Server — causes your computer to use a specific NIS server, rather than broadcasting a

message to the local area network asking for any available server to host your system.

•

Enable LDAP — tells your computer to use LDAP for some or all authentication. LDAP consol-

idates certain types of information within your organization. For example, all of the different lists

of users within your organization can be merged into one LDAP directory. For more information

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Red Hat Linux Itanium 7.2 Manuale Utente Pagina 52