Technical information

6/14 LS PRO OWNER'S HANDBOOK
Using the Security System
Chapter 6
The Setup Disable, Security Setup Disable and Lock Keyboard
check boxes are greyed-out for the Master user account.
The Lock Password check box is greyed-out if the Expiry
(Password) attribute is set. A user must always be permitted
to change his password if it expires.
Understanding the logon sequence
While the security system is disabled, the computer will boot
as described in Chapter 2.
Once the security system is enabled, the logon sequence
intervenes almost immediately after the computer is turned
on or re-booted, unless the security configuration includes a
Quick Logon account (see the section below on “Variations
caused by Quick Logon”).
The diagram on page 6/15 summarises the logon sequence.
The Logon dialog box, requesting a KeyLOC card, will appear
if the security configuration includes at least one account
requiring KeyLOC card authentication.
The User Logon dialog appears if the user presses ESC at the
Logon dialog or if his account requires full authentication. The
User Logon dialog also appears if the KeyLOC card is not
recognised; this masks the fact that the logon has already failed.
If the proffered authentication is not recognised, or if the user
is outside his logon period for today, the logon attempt fails
and the Logon or User Logon dialog re-appears. Repeated
invalid logon attempts may cause lockouts and sound the
lockout alarm, if these features are enabled (see diagram).
If the computer is turned off after one or more invalid logons,
the security system remembers how many invalid logons there
have been and will re-commence from the appropriate point
in the logon sequence when the computer is next turned on.