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 HP-UX System Administrator's Guide: Security Management: HP-UX 11i Version 3 > Chapter 1 Installing the HP-UX Operating Environment Securely

Using Boot Authentication to Prevent Unauthorized Access
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The boot authentication feature protects single-user mode boot with password authentication. It makes it possible to configure a system so that only authorized users are allowed to boot the machine into single-user mode. The boot authentication feature must be enabled before you reboot the system.

Boot authentication is configured by two attributes in the /etc/default/security file:

  • BOOT_AUTH enables or disables boot authentication. Specify BOOT_AUTH=1 to enable boot authentication. By default, authentication is disabled (BOOT_AUTH=0).

  • BOOT_USERS defines who can log in as root when the boot authentication feature is enabled. The names listed in BOOT_USERS are separated by commas. For example:

    BOOT_USERS=root,mary,jack,amy,jane

    BOOT_USERS=root is the default value.

The /etc/default/security configuration file is explained in Chapter 2 and in security(4).



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