Chapter 3. Installing Red Hat Linux

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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.

Note

If you have selected a medium or high firewall to be setup during this installation, network authen 

tication methods (NIS and LDAP) will not work.

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

about LDAP, refer to the Official Red Hat Linux Reference Guide, Lightweight Directory Access

Protocol (LDAP). You can choose from the following options:

LDAP Server   allows you to access a specified server (by providing an IP address) running

the LDAP protocol.

LDAP Base DN   allows you to look up user information by its Distinguished Name (DN).

Use TLS (Transport Layer Security) lookups   this option allows LDAP to send encrypted user

names and passwords to an LDAP server before authentication.

Enable Kerberos   Kerberos is a secure system for providing network authentication services.

For more information about Kerberos, see Using Kerberos 5 on Red Hat Linux in the Official Red

Hat Linux Reference Guide. There are three options to choose from here:

Realm   this option allows you to access a network that uses Kerberos, composed of one or a

few servers (also known as KDCs) and a potentially large number of clients.

KDC   this option allows you access to the Key Distribution Center (KDC), a machine that

issues Kerberos tickets (sometimes called a Ticket Granting Server or TGS).

Admin Server   this option allows you to access a server running kadmind.

Enable SMB Authentication   Sets up PAM to use an SMB server to authenticate users. You

must supply two pieces of information here:

SMB Server   Indicates which SMB server your workstation will connect to for authentication.

SMB Workgroup   Indicates which workgroup the configured SMB servers are in.

Tip

To change your authentication configuration after you have completed the installation, use the auth 

config command.

Type the authconfig command in a shell prompt. If you are not root, it will prompt you for the root

password to continue.