HP AE370A - Brocade 4Gb SAN Switch 4/12, Руководство администратора

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Fabric OS 5.2.x administrator guide 65
not allowed because it is incompatible Web Tools. The default value is zero. The maximum value must
be less than or equal to the
MinLength
value.
• MinLength
Specifies the minimum length of the password. The minimum can be from 8 to 40 characters. New
passwords must between the minimum length specified and 40 characters. The default value is 8. The
total of the other password strength policy parameters (lowercase, uppercase, digits and punctuation)
must be less than or equal to the value of the
MinLength
parameter.
The following example shows a password strength policy that requires passwords to contain at least 3
uppercase characters, 4 lowercase characters and 2 numeric digits; the minimum length of the password is
9 characters.
How to set the password history policy
The password history policy prevents users from recycling recently used passwords, and is enforced across
all user accounts when users are setting their own passwords. The password history policy is enforced only
when a new password is defined.
Specify the number of past password values that are disallowed when setting a new password. Allowable
password history values range between 1 and 24. The default value is 1, which means both the current
and previous passwords cannot be reused. The value 2 indicates that the current and two previous
passwords cannot be used (and so on, up to 24 passwords).
This policy does not verify that a new password meets a minimal standard of difference from prior
passwords, rather, it only determines whether or not a newly-specified password is identical to one of the
specified number (1-24) of previously used passwords.
The password history policy is not enforced when an administrator sets a password for another user;
instead, the user’s password history is preserved and the password set by the administrator is recorded in
the user’s password history.
How to set the password expiration policy
The password expiration policy forces expiration of a password after a configurable period of time, and is
enforced across all user accounts. A warning that password expiration is approaching is displayed when
the user logs in. When a user’s password expires, he or she must change the password to complete the
authentication process and open a user session. You can specify the number of days prior to password
expiration during which warnings will commence. Password expiration does not disable or lock out the
account.
Use the following attributes to set the password expiration policy:
•
MinPasswordAge
Specifies the minimum number of days that must elapse before user can change a password.
MinPasswordAge values range from 0 to 999. The default value is zero. Setting this parameter to a
non-zero value discourages users from rapidly changing a password in order to circumvent the
password history setting to select a recently-used password. The
MinPasswordAge
policy is not
enforced when an administrator changes the password for another user.
•
MaxPasswordAge
Specifies the maximum number of days that can elapse before a password must be changed, and is
also known as the password expiration period.
MaxPasswordAge
values in range from 0 to 999. The
default value is zero. Setting this parameter to zero disables password expiration.
•
Warning
Specifies the number of days prior to password expiration that a warning about password expiration is
displayed. Warning values range from 0 to 999. The default value is 0 days.
NOTE: When
MaxPasswordAge
is set to a non-zero value,
MinPasswordAge
and
Warning
must be
set to a value that is less than or equal to
MaxPasswordAge
.
passwdcfg --set -uppercase 3 -lowercase 4 -digits 2 -minlength 9