Security
Polycom, Inc. 8–15
Changes to most password policy settings do not take effect until the next time
the password is changed. Changes take effect immediately for Minimum
Password Age in Days, Maximum Password Age in Days, and Password
Expiration Warning. Changing Minimum Length from Off to some other
value also takes effect immediately.
Setting Account and Port Lockouts
HDX systems provide access controls that prevent unauthorized use of the
system. One way someone might try to discover valid user names and
passwords is by exhaustively attempting to log in, varying the user name and
password data in a programmatic way until discovering a combination that
succeeds. Such a method is called a “brute-force” attack.
To mitigate the risk of such an attack, two access control mechanisms are
available on HDX systems. The first type of access control, Account Lockout,
is used in conjunction with external authentication, while the second, Port
Lockout, is used when external authentication is not active. Refer to External
Authentication on page 8-5 for more information.
Account Lockout
Account Lockout temporarily locks an account from accepting logins after a
configurable number of unsuccessful attempts to log in to that account. It is
available only when external authentication is enabled, but protects only the
local HDX system’s Admin and User local accounts. The Active Directory
Server protects Active Directory accounts.
Minimum Changed
Characters
Specifies the number of characters that must be different
or change position in a new password. If this is set to 3,
123abc
can change to
345cde
but not to
123bcd
.
Maximum
Consecutive
Repeated
Characters
Specifies the maximum number of consecutive repeated
characters in a valid password. If this is set to 3,
aaa123
is a valid password but
aaaa123
is not.
Can Contain ID or Its
Reverse Form
Specifies whether the associated ID or the reverse of the
ID can be part of a valid password. If this setting is
enabled and the ID is
admin
, passwords
admin
and
nimda
are allowed.
Note: This setting is unavailable for Meeting passwords.
Setting Description
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