Thisbook was written to accomplish one goal: to teach networkadministrators what they need to know to understand the Internetsecurity threat, the technologies used to prevent it, and the
productsthat exist to help them. It's the book I wish I'd had when I couldn'tfind a common language between various vendors to compare firewallliterature and books heavy on theory to the marketing blurbs I readon Web sites, and when I needed help matching a specific customer'srequirements to a specific firewall product.
Thisbook will help you answer questions like these:
•What'sthe difference between packet filtering and stateful inspection, andwhy is it important?
•What'sthe difference between using Network Address Translation and a proxyserver to hide clients?
•Howmuch can I expect to budget for a firewall?
•Whichfirewall is right for my company?
Thisbook was written primarily for active network administrators with theassumption that they
understandthe use and configuration of TCP/IP, and that they are used toworking with Windows NT, Novell NetWare, or UNIX
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