NEC Express 5800/140Rb-4, Руководство по обслуживанию

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System Security
Table 4 summarizes the security features provided by the BIOS to prevent unauthorized or
accidental access to the system. You can enable these features using the Security section of BIOS
Setup. Additional information on passwords is provided following the table.
Table 4. Software Security Features
Feature Description
Secure Mode
To enable secure mode: Set a user password.
To enter secure mode, do one of the following:
•
Press the hot-key combination for secure mode. You can specify a hot-key
combination, which must consist of Ctrl+Alt plus one alphanumeric character.
•
Let the inactivity timer time out. If you don’t touch the keyboard during the
time-out period, the system enters secure mode automatically. You can set the
time-out period from two minutes to 120 minutes.
•
Power on or reset the system. The system automatically enters secure mode
on power up.
When the system is in secure mode:
•
Onboard video is blanked, if enabled.
•
Diskette drive is write protected, if enabled.
•
Power, Sleep, and Reset buttons on the front panel are disabled.
•
Mouse and keyboard input are ignored, except for entering a password.
•
The keyboard LEDs flash.
Secure Mode Boot
To enable, do both of the following:
•
Set a user password.
•
Enable Secure Mode Boot.
To activate: Power on or reset the server.
When enabled:
•
If booting from drive A: the user must enter a password. After the user enters
the password, the system continues with the boot process. The system doesn’t
enter secure mode until activated by the hot-key or timer.
•
If the system is not booting from drive A: the system boots normally. No
password is required, and the system enters secure mode automatically.
The system boots according to the boot device priority set in BIOS Setup.
Password on Boot
To enable, do all of the following:
•
Set a user password.
•
Enable Password on Boot.
•
Disable Secure Mode Boot.
To activate: Power on or reset the server.
When enabled: The user must enter a password to boot the system. The system
boots according to the boot device priority set in BIOS Setup.
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