Excellent book for the beginners--> A lot of computer-security textbooks approach the subject from a defensive point of view. "Do this, and probably you'll survive a particular kind of attack," they say. In refreshing contrast, Hacking Exposed, Second Edition talks about security from an offensive angle... This book tell you about Security vulnerabilities of operating systems, applications, and network devices, Administrative procedures that will help defeat them, Techniques for hacking Windows 95, Windows 98, Windows Me, Windows NT 4.0, Windows 2000, Novell NetWare, and Unix, Strategies for breaking into (or bringing down) telephony devices, routers, and firewalls..

Book Description:
When a tree falls in the forest and no one is around to hear it, it certainly makes a sound. But if a computer network has a security vulnerability and no one knows about it, is it insecure? Only the most extreme Berkeleian idealist might argue against the former, but the latter is not nearly so obvious.

A network with a security vulnerability is insecure to those who know about the vulnerability.If noone knows about it—if it is literally a vulnerability that has not been discovered—then the network is secure. If one person knows about it, then the network is insecure to him but secure to everyone else. If the network equipment manufacturer knows about it...if security researchers know about it...if the hacking community knows about it the insecurity of the network increasesas news of the vulnerability gets out.

Or does it? The vulnerability exists, whether or not anyone knows about it.Publishing a vulnerability does not cause the network to be insecure. To claim that would be confusing knowledge about a thing with the thing itself. Publishing increases the likelihood that an attacker will use the vulnerability, but not the severity of the vulnerability. Publishing also increases the likelihood that people can defend against the vulnerability. Just as an attacker can't exploit a vulnerability he does not know about, a defender can't protect against a vulnerability he does not know about.

So if keeping vulnerabilities secret increases security, it does so in a fragile way. Keeping vulnerabilities secret only works as long as they remain secret—but everything about information works toward spreading information. Some people spread secrets accidentally; others spread them on purpose. Sometimes secrets are re-derived by someone else. And once a secret is out, it can never be put back.

TABLE OF CONTENT:
Chapter 01 - Footprinting
Chapter 02 - Scanning
Chapter 03 - Enumeration
Chapter 04 - Hacking Windows 95/98 and ME
Chapter 05 - Hacking Windows NT
Chapter 06 - Hacking Windows 2000
Chapter 07 - Novell NetWare Hacking
Chapter 08 - Hacking UNIX
Chapter 09 - Dial-Up, PBX, Voicemail, and VPN Hacking
Chapter 10 - Network Devices
Chapter 11 - Firewalls
Chapter 12 - Denial of Service (DoS) Attacks
Chapter 13 - Remote Control Insecurities
Chapter 14 - Advanced Techniques
Chapter 15 - Web Hacking
Chapter 16 - Hacking the Internet User
Appendix A - Ports
Appendix B - Top 14 Security Vulnerabilities
Appendix C - About the Companion Web Site

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