I want to setup a default password policy to have at least one
of each of the following: alpha character, numeric character, and "special"
character ("!", "&", etc).
The smitty Security and Users --> Passwords --> System Password
Policy screen only offers "MIN ALPHA characters" and "MIN OTHER
characters".
AIX cannot require a special character, but you can specify some other parameters. Look at the top of the /etc/security/user file and you can see some descriptions of what you are able to set. These would take care of a couple of you items:
* minalpha Defines the minimum number of alphabetic characters in a
* password. The default is 0. Range: 0 to 8.
* minother Defines the minimum number of non-alphabetic characters in a
* password. The default is 0. Range: 0 to 8.