Multi-level 'su' access.

COREHACKERS.COM has a very good article on how to configure mulitple levels of su access. From what the article says this works on slackware and other non-PAM distributions.

This option brings up a number of different opportunities that would be available for administering systems. The site overall is one that is well worth the time to go through once in a while to see what is new that they have written about.