Password convention

[Remko Oosenbrug]

My users must change there password every twelve weeks. The new password must differ at least three characters. Can I change this password convention?

[Douglas Cromby_1]

It looks like this convention of 3 chars having to be different is locked in, as it explains this in the man page for newpass.

[Douglas Cromby_1]

I have had a look and cannot find any Enhancement Request or the like, requesting that this 3 char rule be changed. Looks like it is a fixed requirement.

[Stefan Farrelly]

If you use a trusted system then you can use the modprpw command to allow any type of passwords you want.

[Wilmar Ricio]

The 3 char as mentioned earlier is locked-in with the passwd command (untrusted system).
Command would be:
passwd -f -x 90 user_name
f - force
x - 90 days
This would prompt user_name to change passwd every 90 days.