Shadow passwords

[Johann Spies <jspies@sun.ac.za>]

I am busy building two new proxy servers. I installed the first from
debian-install CD with the normal installer.  As an exercise in
disaster recovery I decided to install the second from a CD I have
build with dfsbuild on the first one.  

On the second machine "Tiger" reports: 

<user> is not configured to use shadow passwords ...

How do I change that after an installation that did not ask beforehand
about shadow passwords?

I did a  'sudo shadowconfig on' but suspect that will only have an
effect on new passwords - or not?

Regards
Johann
-- 
Johann Spies          Telefoon: 021-808 4036
Informasietegnologie, Universiteit van Stellenbosch

     "Trust in the Lord with all your heart, and do not
      lean on your own understanding."
                                        Proverbs 3:5


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