Specifies the characters to be restricted. (QPWDLMTCHR)
Restricted characters, also known as QPWDLMTCHR, is a member of the password category of i5/OS™ system values. You can use this system value to specify the characters to be restricted. To learn more, keep reading.
| Quick reference | |
|---|---|
| Location | In iSeries™ Navigator, select your system, |
| Special authority | All object (*ALLOBJ) and security administrator (*SECADM) |
| Default value | No restricted characters |
| Changes take effect | Immediately |
| Lockable | Yes Lock function of security-related system values  (Click for details) |
What can I do with this system value?
You may specify certain characters that are not allowed in a password or you may specify that any characters are allowed in a password (*NONE). You may restrict characters A through Z, 0 through 9, and the following special characters: number sign (#), dollar sign ($), at sign (@), and underscore (_).
You can use this option to provide additional security by preventing users from using specific characters, such as vowels, in a password. Restricting vowels prevents users from forming actual words for their passwords. You can specify up to 10 restricted characters.
This system value is not enforced when the password level is 2 or 3. This system value can be changed at password level 2 or 3, but will not be enforced until the password level is changed to a value of 0 or 1.
The suggested setting is A, E, I, O, and U. You may also want to restrict special characters (#, $, and @) for compatibility with other systems.
Where can I get more information about this system value?
To learn more, go to the password system values overview topic. If you are looking for a specific system value or category of system values, try using the i5/OS system value finder.