set up password change regularly with certain rules

Soo-Hyun Choi s.choi at
Mon Nov 5 14:49:56 UTC 2007

Thanks Chris to reply my enquiry.

I wonder how can I force a user to use complex password set instead of
simple character combination. I was able to force them to change their
password regularly with "passwd" command, but was not able to set a sort of
rules in making a password.


On 11/4/07, Chris Mohler <cr33dog at> wrote:
> On Nov 4, 2007 3:16 PM, Soo-Hyun Choi <s.choi at> wrote:
> > hi,
> >
> > i wonder if there is any good way of setting up a user password change
> > regularly with applying certain rules (e.g., more than 6 letters or so).
> the
> > basic intention is to force a user to change his password in a regular
> > basis.
> Check out:
> man passwd
> I think there's enough info in there to set up what you're looking for...
> Chris
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