Lock down user account in Debian/Gnome

[Greg Vickers <g.vickers@qut.edu.au>]

Hi all,

I am building a couple of PCs which will be used for public Internet 
access in a small library. These PCs will also be on the same physical 
network as the 'office' PCs. Obviously I'd like these PCs to have 
seriously restricted access to the local network, what I'd like to know 
is can anyone recommend a resource to me on locking down public access 
Debian-based Linux computers?

Thanks,
--
Greg Vickers
IT Security Engineer & Project Manager
IT Security, Network Services,
Information Technology Services
Queensland University of Technology
L12, 126 Margaret St, Brisbane

Phone: +61 7 3138 9536
Mobile: 0410 434 734
Fax: +61 7 3138 2921
Email: g.vickers@qut.edu.au
IT Security web site: http://www.its.qut.edu.au/itsecurity/

CRICOS No. 00213J