Internet Lockdown: Internet Security Administrator's Handbook covers hot security technology including firewalls, intrusion detection and prevention, honeypots, network security on all operating systems. It explains confusing core concepts like certificates, cryptography, firewalls and encryption in a fashion anyone can understand. This book takes the theory behind security and provides real-world implementation examples and techniques.

This book focuses on practical approaches to achieving security in the real world. The real world I live in has too few resources, too few staff, too skimpy a budget, and too little time. (I don't think I've ever seen an overstaffed IT department.) Despite the challenges, security can be achieved.

Definitions of security and ideas about how to achieve it abound in the industry — but they aren’t much use unless everyone is on the same page. Therefore Internet Lockdown: Internet Security Administrator’s Handbook (ISAH) starts out by covering the basics of security. From there — since you can’t be expected to defend properly against something you don’t understand — a tour of the hacker’s techniques, tools, and methods gives you an outline of what you’re up against. Then ISAH works through the different layers at which you can implement security measures. The last several chapters pull all these layers together by discussing the whole process of implementing security, from design to testing. A sample company profile helps clarify what goes where and why.