Practical Unix & Internet Security

Overview

When Practical Unix Security was first published more than a decade ago, it became an instant classic. Crammed with information about host security, it saved many a Unix system administrator from disaster. The second edition added much-needed Internet security coverage and doubled the size of the original volume. The third edition is a comprehensive update of this very popular book - a companion for the Unix/Linux system administrator who needs to secure his or her organization's system, networks, and web ...

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Overview

When Practical Unix Security was first published more than a decade ago, it became an instant classic. Crammed with information about host security, it saved many a Unix system administrator from disaster. The second edition added much-needed Internet security coverage and doubled the size of the original volume. The third edition is a comprehensive update of this very popular book - a companion for the Unix/Linux system administrator who needs to secure his or her organization's system, networks, and web presence in an increasingly hostile world.

Focusing on the four most popular Unix variants today—Solaris, Mac OS X, Linux, and FreeBSD—this book contains new information on PAM (Pluggable Authentication Modules), LDAP, SMB/Samba, anti-theft technologies, embedded systems, wireless and laptop issues, forensics, intrusion detection, chroot jails, telephone scanners and firewalls, virtual and cryptographic filesystems, WebNFS, kernel security levels, outsourcing, legal issues, new Internet protocols and cryptographic algorithms, and much more.

Practical Unix & Internet Security consists of six parts:

  • Computer security basics: introduction to security problems and solutions, Unix history and lineage, and the importance of security policies as a basic element of system security.
  • Security building blocks: fundamentals of Unix passwords, users, groups, the Unix filesystem, cryptography, physical security, and personnel security.
  • Network security: a detailed look at modem and dialup security, TCP/IP, securing individual network services, Sun's RPC, various host and network authentication systems (e.g., NIS, NIS+, and Kerberos), NFS and other filesystems, and the importance of secure programming.
  • Secure operations: keeping up to date in today's changing security world, backups, defending against attacks, performing integrity management, and auditing.
  • Handling security incidents: discovering a break-in, dealing with programmed threats and denial of service attacks, and legal aspects of computer security.
  • Appendixes: a comprehensive security checklist and a detailed bibliography of paper and electronic references for further reading and research.

Packed with 1000 pages of helpful text, scripts, checklists, tips, and warnings, this third edition remains the definitive reference for Unix administrators and anyone who cares about protecting their systems and data from today's threats.

The definitive book on UNIX security, this volume covers every aspect of computer security on UNIX machines and the Internet.

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Editorial Reviews

Library Journal
Open-source, UNIX-like operating systems such as Linux (Computer Media, LJ 5/1/03) and FreeBSD (Computer Media, LJ 9/1/03) have been growing in popularity, adding to UNIX's reputation as an undeniable standard. For beginning users (with little geared toward administrators), Visual QuickStart provides step-by-step instructions to common commands, from logging in to recording login sessions-with typical tips, tables, sidebars, and screenshots. Appendixes contain a UNIX reference, typical file and directory locations, and command flags. A gentle introduction to the seemingly intimidating UNIX environment; recommended for all libraries. Webmin covers the core uses of this popular open-source, web-based graphical system administration tool, from installation to configuring DNS with BIND to setting up Sendmail. Notes, cautions, and tips add OS-specific and other useful information, the use of each Webmin option is clearly explained, and strategic screen shots illustrate concepts. Especially useful for beginning to intermediate administrators, this will find an audience in larger libraries. (The text is also freely available online.) Security updates and revises this comprehensive classic for beginning to advanced administrators, with hands-on, applicable advice for securing UNIX and UNIX-like networks. While all examples are UNIX-specific, the underlying explanations of network security issues are useful overall. Its logical organization and clear explanations make it a good reference for larger libraries. Copyright 2003 Reed Business Information.
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Product Details

  • ISBN-13: 9780596003234
  • Publisher: O'Reilly Media, Incorporated
  • Publication date: 2/20/2003
  • Edition description: Third Edition
  • Edition number: 3
  • Pages: 988
  • Sales rank: 588,890
  • Product dimensions: 7.10 (w) x 9.10 (h) x 2.10 (d)

Meet the Author

Simson Garfinkel, CISSP, is a journalist, entrepreneur, and international authority on computer security. Garfinkel is chief technology officer at Sandstorm Enterprises, a Boston-based firm that develops state-of-the-art computer security tools. Garfinkel is also a columnist for Technology Review Magazine and has written for more than 50 publications, including Computerworld, Forbes, and The New York Times. He is also the author of Database Nation; Web Security, Privacy, and Commerce; PGP: Pretty Good Privacy; and seven other books. Garfinkel earned a master's degree in journalism at Columbia University in 1988 and holds three undergraduate degrees from MIT. He is currently working on his doctorate at MIT's Laboratory for Computer Science.

Gene Spafford, Ph.D., CISSP, is an internationally renowned scientist and educator who has been working in information security, policy, cybercrime, and software engineering for nearly two decades. He is a professor at Purdue University and is the director of CERIAS, the world's premier multidisciplinary academic center for information security and assurance. Professor Spafford and his students have pioneered a number of technologies and concepts well-known in security today, including the COPS and Tripwire tools, two-stage firewalls, and vulnerability databases. Spaf, as he is widely known, has achieved numerous professional honors recognizing his teaching, his research, and his professional service. These include being named a fellow of the AAAS, the ACM, and the IEEE; receiving the National Computer Systems Security Award; receiving the William Hugh Murray Medal of the NCISSE; election to the ISSA Hall of Fame; and receiving the Charles Murphy Award at Purdue. He was named a CISSP, honoris causa in 2000. In addition to over 100 technical reports and articles on his research, Spaf is also the coauthor of Web Security, Privacy, and Commerce, and was the consulting editor for Computer Crime: A Crimefighters Handbook (both from O'Reilly).

Alan Schwartz, Ph.D. is an assistant professor of clinical decision making in the Departments of Medical Education and Pediatrics at the University of Illinois at Chicago. He is also the author of Managing Mailing Lists and the coauthor of Stopping Spam (both from O'Reilly). He serves as a consultant on Unix system administration for several ISPs. In his spare time, he develops and maintains the PennMUSH MUD server and brews beer and mead with his wife, with whom he also develops and maintains their son. Turn-ons for Alan include sailing, programming in Perl, playing duplicate bridge, and drinking Anchor Porter. Turn-offs include spam and watery American lagers.

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Table of Contents

  • Preface
  • Computer Security Basics
    • Chapter 1: Introduction: Some Fundamental Questions
    • Chapter 2: Unix History and Lineage
    • Chapter 3: Policies and Guidelines


  • Security Building Blocks
    • Chapter 4: Users, Passwords, and Authentication
    • Chapter 5: Users, Groups, and the Superuser
    • Chapter 6: Filesystems and Security
    • Chapter 7: Cryptography Basics
    • Chapter 8: Physical Security for Servers
    • Chapter 9: Personnel Security


  • Network and Internet Security
    • Chapter 10: Modems and Dialup Security
    • Chapter 11: TCP/IP Networks
    • Chapter 12: Securing TCP and UDP Services
    • Chapter 13: Sun RPC
    • Chapter 14: Network-Based Authentication Systems
    • Chapter 15: Network Filesystems
    • Chapter 16: Secure Programming Techniques


  • Secure Operations
    • Chapter 17: Keeping Up to Date
    • Chapter 18: Backups
    • Chapter 19: Defending Accounts
    • Chapter 20: Integrity Management
    • Chapter 21: Auditing, Logging, and Forensics


  • Handling Security Incidents
    • Chapter 22: Discovering a Break-in
    • Chapter 23: Protecting Against Programmed Threats
    • Chapter 24: Denial of Service Attacks and Solutions
    • Chapter 25: Computer Crime
    • Chapter 26: Who Do You Trust?


  • Appendixes
    • Unix Security Checklist
    • Unix Processes
    • Paper Sources
    • Electronic Resources
    • Organizations


  • Colophon

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