Defines the maximum number of weeks that a password is valid. In setting the maxage attribute, it enforces regular password changes.
Solution
In /etc/security/user, set the default user stanza maxage attribute to a number greater than 0 but less than or equal to 13- chsec -f /etc/security/user -s default -a maxage=13 This means that a user password must be changed 13 weeks after being set . If 0 is set then this effectively disables password ageing.