Rick Lehtinen - Computer Security Basics
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Computer Security Basics: summary, description and annotation
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The new edition builds on the well-established principles developed in the original edition and thoroughly updates that core knowledge. For anyone involved with computer security, including security administrators, system administrators, developers, and It managers, Computer Security Basics 2nd Edition offers a clear overview of the security concepts you need to know, including access controls, malicious software, security policy, cryptography, biometrics, as well as government regulations and standards.
This handbook describes complicated concepts such as trusted systems, encryption, and mandatory access control in simple terms. It tells you what you need to know to understand the basics of computer security, and it will help you persuade your employees to practice safe computing.
Topics include:
- Computer security concepts
- Security breaches, such as viruses and other malicious programs
- Access controls
- Security policy
- Web attacks
- Communications and network security
- Encryption
- Physical security and biometrics
- Wireless network security
- Computer security and requirements of the Orange Book
- Osi Model and Tempest
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This book is about computer securitywhat it is, where it came from, where its going, and why we should care about it. It introduces the many different areas of security in clear and simple terms: access controls, worms and viruses, cryptography, firewalls, network and web security, biometric devices, and more. If youre at all interested in computer security or if computer security is a part of your job (whether you want it to be or not!), you should find this book useful. Ive tried to give you the big picture and quite a few helpful details.
This book is not a technical reference. Ive tried to pull together the basics about many different areas of computer security and put that information together comprehensively. If you need particularly technical information about a specific area of computer security (for example, making your specific system or operating system more secure, securing your web site, or configuring a router or firewall), you should refer to other, more specialized books.
This book is divided into 10 chapters and 3 appendixes.
This section presents a brief overview of what computer security is, where it came from, and where its going.
This chapter introduces computer security: what it is and why its important. It summarizes the threats to computers and the information stored on them, and it introduces the different types of computer security.
, Some Security HistoryThis chapter briefly describes the history of computer security: where it came from, and what government mandates, laws, and standards address it.
This section discusses computer security methods of protecting information stored in a computer system, primarily by controlling access to that information.
This chapter introduces computer system security and describes how that security controls access to systems and data.
, Viruses and Other WildlifeThis chapter explores viruses, worms, Trojans, and other types of malicious code.
, Establishing and Maintaining a Security PolicyThis chapter describes the administrative procedures that improve security within an organization. It also introduces business continuity and disaster recovery as part of security.
, Web Attacks and Internet VulnerabilitiesThis chapter introduces the perils that can attack your system or network while it is connected to the Internet.
This section discusses communications security methods of protecting information while its being transmitted over communications lines and network backbones.
This chapter explains what encryption is and how it protects data.
, Communications and Network SecurityThis chapter introduces network concepts and discusses some basic communications security issues.
This section describes several additional types of security.
This chapter introduces physical security and describes different types of biometric devices.
, Wireless Network SecurityThis chapter describes the workings of wireless networks and the security ramifications of this access medium.
This section provides a number of quick references to computer security requirements and programs.
This appendix describes the seven layers of OSI and how each relates to security.
, TEMPESTThis appendix describes what TEMPEST is and why its important.
, The Orange Book, FIPS PUBS, and the Common CriteriaThis appendix provides a summary of legacy Orange Book requirements, the Federal Information Processing Publications (FIPS PUBS), and the Common Criteria, which is the international successor to the Orange Book.
This book is here to help you get your job done. In general, you may use the code in this book in your programs and documentation. You do not need to contact OReilly for permission unless youre reproducing a significant portion of the code. For example, writing a program that uses several chunks of code from this book does not require permission. Selling or distributing a CD-ROM of examples from OReilly books does require permission. Answering a question by citing this book and quoting example code does not require permission. Incorporating a significant amount of example code from this book into your products documentation does require permission.
We appreciate, but do not require, attribution. An attribution usually includes the title, author, publisher, and ISBN. For example: Computer Security Basics , Second Edition, by Rick Lehtinen, Deborah Russell, and G.T. Gangemi Sr. Copyright 2006 OReilly Media, Inc., 0-596-00669-1.
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Any author of a second edition is incredibly indebted to the authors of the first. Deborah Russell, you were great to work with from start to finish. The text authored by you and G.T. Gangemi Sr. gave me an excellent starting point. Lets do it again some day. And to my buds at Ciscos Network Academy and to Gwen, my CISSP coach, who put me up to thiswarm thanks, I owe you.
Thanks to Kathy, Jana, Jon, Kyle and a few cats who did not see enough of me during this books production, and Louise who said I shouldnt undertake it, but was kind of proud once it got done.
Many people from OReilly helped to produce this second edition: Deborah Russell for seeing the value in the project and Tatiana Apandi for keeping me at it and cheering me on when it conflicted with my day job. Thanks to my technical reviewers: Mark Lucking, Simon Biles, and especially Mary Dageforde for all her help. Many thanks!
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