Operating instructions

5.19 Setting Console Security
The SRM console firmware has console security features intended to
prevent unauthorized personnel from modifying the system parame-
ters or otherwise tampering with the system from the console. The se-
curity features include a secure mode and commands to set console se-
curity.
5.19.1 Overview of Secure Mode
The SRM console has two modes, user mode and secure mode.
• User mode allows you to use all SRM console commands. User mode is the
default mode.
• Secure mode allows you to use only the boot and continue commands. The
boot command cannot take command-line parameters when the console is
in secure mode. The console boots the operating system using the environ-
ment variables stored in NVRAM (boot_file, bootdef_dev, boot_flags).
Secure Function Commands
• The set password and set secure commands are used to set secure mode.
• The clear password command is used to exit secure mode and return to
user mode. All the SRM console commands are available and the console is
no longer secure.
• The login command turns off console security for the current console ses-
sion. Once you enter the login command in secure mode, you can enter any
SRM command as usual. However, the system automatically returns to se-
cure mode when you enter the boot or continue command or when you re-
set the system.
NOTE: The security features work only if access to the system hardware is de-
nied to unauthorized personnel. Be sure the system is available only to
authorized personnel.
5-38 DS25 Owner’s Guide