NIST just put out a final copy of an introduction to Internet firewalls,
which is available electronically as well as hard copy (1 per request,
copies are limited). The place to get it electronically is
or via anonymous ftp at above address.
You can also get a hard copy, although we couldn't afford to print up
too many so electronic is preferred, at 301-975-2821.
This document attempts to be all things to all firewalls, but the main
thing is that it is an _introduction_ to people who don't know much
about firewalls. I hope you like it.
John P. Wack, National Institute of Standards and Technology
Technology A-216, Gaithersburg, Md. 20899
making do in the greater D.C. area...
neither NIST nor I speak for each other...