Firewalls

There are many people whose efforts on this book have contributed

to its successful completion. I owe each a debt of gratitude and want

to take this opportunity to offer my sincere thanks.

A very special thanks to my editor and publisher Theron Shreve,

without whose continued interest and support this book would not

have been possible. Thanks to my production editor, Keith Roberts;

Senior Project Manager, George Morrison; and copyeditor, Rachel

D. Henriquez, whose fine editorial work has been invaluable. Thanks

also to my marketing manager, Georgina Edwards, whose efforts on

this book have been greatly appreciated. Finally, thanks to all of the

other ...