Defines the period of time in weeks that a user will not be able to reuse a password. Rationale: In setting the histexpire attribute, it ensures that a user cannot reuse a password within a set period of time.
Solution
In /etc/security/user, set the default user stanza histexpire attribute to be greater than or equal to 26: chsec -f /etc/security/user -s default -a histexpire=26 This means that a user will not be able to reuse any password set in the last 26 weeks. Default Value: Not set