[PLUG] Password aging in Linux

["Luis Baars" <luisbaars@hotmail.com>]

Hi,

I'm trying to add new users to my system, and I want the system to force 
them to change their default passwords after the first time they log on. 
Does anyone know how to do it?  I have tried using the following command, 
and get the errors below:

# passwd -x0 lbaars
passwd: bad argument -x0: unknown option

I thought this was a valid option in a standard UNIX box.  Is it different 
on a Linux box?  I also tried using the passwd -S command and received the 
following output:

Changing password for user lbaars
Password set, MD5 encryption

When I was expecting output like this (I got this output from 
Shadow-Password HowTo 7):

fred P 03/04/96 0 60 0 0

Am I missing a program or library?  Here is my current configuration:

Red Hat Linux 6.1
Kernel 2.2.12-20
passwd-0.63-1
pam-0.68.7

It tried finding out more info. about pam_ldap-36-1 which was included on my 
RedHat cd but it didn't help much.  In addition, it requires two libraries 
that aren't even included on the RedHat CD, liblber.so.1 and libldap.so.1.  
I found the source elsewhere, but I'm not going to install it if I don't 
know what it is.  Does anyone know what this package does?

Any information would be appreciated.

Thanks,
Luis

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