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Chapter 15-Users, Connections and Notes
Polycom, Inc. 15-11
Implementing Password Re-Use / History Rules
Users are prevented from re-using previous passwords by keeping a list of previous
passwords. If a password is recorded in the list, it cannot be re-used. The list is cyclic, with
the most recently recorded password causing the deletion of the oldest recorded password.
• The number of passwords that are recorded is determined by the value of the
PASSWORD_HISTORY_SIZE System Flag. Possible values are between 0 and 16.
• A flag value of 0 means the rule is not enforced, however this rule cannot be disabled
when the RMX is in Ultra Secure Mode.
•In Ultra Secure Mode, at least 10 passwords (default) and up to 16 passwords must be
retained.
If the password does not meet this requirement, an error, New password was used recently, is
displayed.
Defining Password Aging
The duration of password validity is determined by the value of the
PASSWORD_EXPIRATION_DAYS System Flag.
• Passwords can be set to be valid for durations of between 0 and 90 days.
•If the System Flag is set to 0, user passwords do not expire. The System Flag cannot be set
to 0 when the RMX is in Ultra Secure Mode.
•In Ultra Secure Mode, the minimum duration can be set to 7 days and the default
duration is 60 days.
The display of a warning to the user of the number of days until password expiration is
determined by the value of the PASSWORD_EXPIRATION_WARNING_DAYS System
Flag.
• Possible number of days to display expiry warnings is between 0 and 14.
•If the System Flag is set to 0, password expiry warnings are not displayed. The System
Flag cannot be set to 0 when the RMX is in Ultra Secure Mode.
•In Ultra Secure Mode, the earliest warning can be displayed 14 days before passwords
are due to expire and the latest warning can be displayed 7 days before passwords are
due to expire (default setting).
• If a user attempts to log in after his/her password has expired, an error is displayed:
User must change password.
Maximum Repeating Characters
A System Flag MAX_PASSWORD_REPEATED_CHAR allows the administrator to
configure the maximum number of consecutive repeating characters to be allowed in a
password.
Range: 1 - 4
Default: 2
A System Flag MAX_CONF_PASSWORD_REPEATED_CHAR allows the administrator to
configure the maximum number of consecutive repeating characters that are to be allowed
in a conference password.
Range: 1 - 4
Default: 2