H3C Technologies H3C SecBlade LB Cards - Manual (Page 102)

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Password combination
level
Minimum number of
character types
Minimum number of characters for
each type
Level 4 Four One
When a user sets or changes the password, the system checks if the password meets the
composition requirement. If not, the system displays an error message.
• Password complexity checking
A less complicated password such as a password containing the username or repeated characters
is more likely to be cracked. For higher security, you can configure a password complexity
checking policy to make sure that all user passwords are relatively complicated. With such a
policy configured, when a user configures a password, the system checks the complexity of the
password. If the password is complexity-incompliant, the system refuses the password and
displays a password configuration failure message.
You can impose the following password complexity requirements:
{
A password cannot contain the username or the reverse of the username. For example, if the
username is abc, a password such as abc982 or 2cba is not complex enough.
{
No character of the password is repeated three or more times consecutively. For example,
password a111 is not complex enough.
• Password display in the form of a string of asterisks (*)
For the sake of security, the password a user enters is displayed in the form of a string of asterisks
(*).
• Authentication timeout management
Authentication timeout management is only for Telnet and Terminal users.
The authentication period is from when the server obtains the username to when the server finishes
authenticating the user's password. If a user fails to log in within the configured period of time, the
system tears down the connection.
• Maximum account idle time
You can set the maximum account idle time so that accounts staying idle for this period of time
become invalid. For example, if you set the maximum account idle time to 60 days and the user of
the account test has not logged in successfully within 60 days after the last successful login, the
account becomes invalid and the user is unable to log in again.
• Logging
The system logs all successful password changing events and the events of adding users to the
password control blacklist.
Password control configuration task list
The password control functions can be configured in several views, and different views support different
functions. The settings configured in different views or for different objects have different application
ranges and different priorities:
• Global settings in system view apply to all local user passwords and super passwords.
• Settings in user group view apply to the passwords of all local users in the user group.
• Settings in local user view apply to only the password of the local user.
• Settings for super passwords apply to only super passwords.