DEC 3000 800, Owner'S Manual

Page: 173 / 318

Before You Begin
When to Use
the Security
Feature If the password security feature is not enabled, whenever a user
enters console mode, he or she can use all of the the privileged
console commands, such as
halt
,
set
,
deposit
, and
boot
. By
using the password security feature, you can restrict access to
these key console mode functions.
Privileged
Commands Once you invoke the password security feature, certain console
commands become privileged—you can issue these commands
only if you use the password when you enter the
login
command
at the console prompt.
In general, any commands that modify memory and registers, or
that transfer CPU control from the console monitor to another
program, such as
halt
or
start
, are considered privileged
commands.
List of
Privileged
Commands Table 11–1 lists both privileged and nonprivileged console
commands.
Table 11–1 Console Command Access
Privileged Commands Nonprivileged Commands
boot
(with parameters)
boot
(with no parameters)
deposit login
(to allow password entry
to the privileged state)
examine continue
(if you inadvertently
push the halt button, this
command lets you continue
operations in a nonprivileged
mode)
halt help
initialize !
(to enter comment text that
the system does not act upon)
repeat
–
set
–
show
–
start
–
test
–
Using the Password Security Feature 11–3