Update: New formats available. This Quick Reference Card is intended to provide a starting point for improving the security of your system. Contained within include references to security resources around the net, tips on securing your Linux box, and general security information. It is intended to be printed on 8x11" US paper in Landscape.
If you need it printed in another format, let me know. Just haven't had the time to do it yet. I'm very interested in receiving your feedback on this document. Are there other topics I should cover in the next version?