The book you are about to read will arm you with the knowledge you need to defend your network from attackers—both the obvious and the not so obvious....If you are new to network security, don't put this book back on the shelf! This is a great book for beginners and I wish I had access to it many years ago. If you've learned the basics of TCP/IP protocols and run an open source or commercial IDS, you may be asking "What's next?" If so, this book is for you.