System values: Password overview
You can use IBM® i password system values to control the password values and password restrictions.
To access the password category of system values from System i® Navigator, select Configuration and Services and then select System Values.
System i Navigator uses descriptive names for system values. The following table provides an overview of the password system values available in System i Navigator (and their counterparts in the character-based interface).
Name in System i Navigator | Description of system value | Name in character-based interface |
---|---|---|
Minimum time between password changes | This system value sets the time period that changes to a password are blocked after the last successful password change operation. | QPWDCHGBLK |
Password expiration | This system value specifies when a password expires. | QPWDEXPITV |
Password expiration warning interval | This system value specifies how many days before a password expires to begin displaying password expiration warning messages on the Sign-on information display. | QPWDEXPWRN |
Restrict consecutive digits | This system value requires to restrict consecutive digits in passwords. | QPWDLMTAJC |
Restricted characters | This system value specifies the characters to be restricted. | QPWDLMTCHR |
Restrict repeating characters | This system value specifies whether to restrict repeating characters. | QPWDLMTREP |
Maximum password length | This system value sets the maximum length for a password. | QPWDMAXLEN |
Minimum password length | This system value sets the minimum length for a password. | QPWDMINLEN |
Password level | This system value sets the password level for the system. | QPWDLVL |
Require a new character in each position | This system value requires that for each position in a new password, users should use a different character from the one in the same position in the previous password. | QPWDPOSDIF |
Require at least one digit | This system value requires that passwords use at least one digit. | QPWDRQDDGT |
Password reuse cycle | This system value specifies when a password can be used again. | QPWDRQDDIF |
Password rules | This system value specifies a set of password rules that override other password system values when the system checks whether a password is formed correctly. | QPWDRULES |
Password validation program | This system value specifies whether a user-written program does additional validation on passwords. | QPWDVLDPGM |