Dell Brocade 6510 Fabric OS Administrator's Guide v7.1.0 - Page 143
Password expiration policy, Account lockout policy
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Password policies 5 Password expiration policy The password expiration policy forces the expiration of a password after a configurable period of time. The expiration policy can be enforced across all user accounts or on specified users only. A warning that password expiration is approaching is displayed when the user logs in. When a password expires, the user 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 the passwdCfg command to set the password expiration policy: • MinPasswordAge Specifies the minimum number of days that must elapse before a user can change a password. MinPasswordAge values range from 0 through 999. The default value is zero. Setting this parameter to a nonzero 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 range from 0 through 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 through 999. The default value is 0 days. NOTE When MaxPasswordAge is set to a nonzero value, MinPasswordAge and Warning must be set to a value that is less than or equal to MaxPasswordAge. Example password expiration policies The following example configures a password expiration policy for the metoo user account. This user must change the password within 90 days of setting the current password and no sooner than 10 days after setting the current password. The user will start to receive warning messages 3 days before the 90-day limit, if the password is not already changed. > passwdcfg --setuser metoo -minpasswordage 10 -maxpasswordage 90 -warning 3 The following example configures a password expiration policy for all users. > passwdcfg --set -minpasswordage 5 -maxpasswordage 30 -warning 5 Account lockout policy The account lockout policy disables a user account when that user exceeds a specified number of failed login attempts, and is enforced across all user accounts. You can configure this policy to keep the account locked until explicit administrative action is taken to unlock it, or the locked account can be automatically unlocked after a specified period. Administrators can unlock a locked account at any time. Fabric OS Administrator's Guide 143 53-1002745-02
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