"As this book shows, Linux systems are just as functional, secure, and reliable as their proprietary counterparts. Thanks to the ongoing efforts of thousands of Linux developers, Linux is more ready than ever for deployment at the front lines of the real world. The authors of this book know that terrain well, and I am happy to leave you in their most capable hands." Linus Torvalds "This book is where I turn first when I have system administration questions. It is truly a wonderful resource and always within reach of my terminal." W. Richard Stevens, author of numerous books on UNIX and TCP/IP "This is a comprehensive guide to the care and feeding of UNIX systems. The authors present the facts along with seasoned advice and numerous real-world examples. Their perspective on the variations among systems is valuable for anyone who runs a heterogeneous computing facility." Pat Parseghian, Transmeta "We noticed your book on the staff -recommendations shelf at our local bookstore: 'Very clear, a masterful interpretation of the subject.' We were most impressed, until we noticed that the same staff member had also recommended Aunt Bea's Mayberry Cookbook." Shannon Bloomstran, history teacher The twentieth anniversary edition of the world's best-selling UNIX system administration book has been made even more invaluable by adding coverage of the leading Linux distributions: Ubuntu, RHEL, and openSUSE. System administrators looking to efficiently solve technical problems and maximize reliability and performance in production environments can now turn toUNIX® and Linux® System Administration Handbook, Fourth Edition,which has been systematically updated to reflect today's most important enterprise Linux and UNIX distributions and most valuable administrative tools. Drawing on decades of experience, the authors share clear, well-founded advice on constructing robust, production-grade systems and networks that can be easily maintained, monitored, and controlled. You'll find detailed, up-to-date best practices advice and important new coverage of virtualization, cloud computing, security management, web load balancing and scalability, LDAP/Active Directory integration, modern web scripting languages, Spacewalk, DTrace, eco-friendly IT management, and much more. It reflects the latest versions of all these distributions: Red Hat® Enterprise Linux® Ubuntu® Linux openSUSE Oracle Solaris OpenSolaris AIX HP-UX Sharing war stories and hard-won insights, the authors capture the behavior of UNIX and Linux systems in the real world, not just in ideal environments. They explain complex tasks in detail, with illustrations from actual production environments, and provide brand-new "Top 20 lists" of system administration rules, power-saving tips, and more.Nemeth, Evi is the author of 'Unix System Administration Handbook ', published 2010 under ISBN 9780131480056 and ISBN 0131480057.