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Title:UNIX and Linux System Administration Handbook, Fifth Edtion
Description:Home page for the book UNIX and Linux System Administration Handbook by Nemeth, Snyder, Hein, Whaley, and Mackin
Keywords:UNIX system administration, Linux system administration, Evi Nemeth, Trent R. Hein, Ben Whaley, Garth Snyder, Dan Mackin
 UNIX and Linux System Administration Handbook, Fifth Edtion Cover image and cartoons by Lisa
Haney 鈥淚 recommend this book for anyone administering UNIX or Linux systems.鈥 David | 15 reviewers made a similar statement 鈥淚t's well written, easy to read and very informative.鈥 Gary L. Roach | 12 reviewers made a similar statement 鈥淏est Linux book I have purchased ever to date.鈥 Josh | 15 reviewers made a similar statement We are pleased to announce the completely updated fifth edition of UNIX and Linux System Administration Handbook! The book is published by Addison-Wesley Professional. 鈥淭his edition is for those whose systems live in the cloud or in virtualized data centers; those whose administrative work largely takes the form of automation and configuration source code; those who collaborate closely with developers, network engineers, compliance officers, and all the other worker bees who inhabit the modern hive.鈥 鈥 from the Foreword by Paul Vixie, Internet Hall of Fame-recognized innovator and founder of ISC and Farsight Security 鈥淎s an author, editor, and publisher, I never paid much attention to the competition鈥 except in a few cases. This is one of those cases. UNIX System Administration Handbook is one of the few books we ever measured ourselves against.鈥 鈥 from the 4th Edition Foreword by Tim O'Reilly, founder of O'Reilly Media Find it online Print and Kindle editions Print and ePub (Nook) editions Publisher's site; print and DRM-free PDF editions Online access amp; PDF chapters (subscription service) Samples and extras Sample chapters Table of Contents Tribute to Evi Preface Foreword Where
to Start Index Past Forewords LAH1E
by Linus Torvalds ULSAH4E
by Tim O'Reilly USAH2E
by Allman and McKusick USAH1E
by Dennis Ritchie Other resources Errata
and updates (4th Edition) Frequently
asked questions Obsolete chapters SLIP and PPP (USAH2E) Usenet
News (USAH2E) Disk
Space Management (USAH2E) Accounting
(USAH2E) UUCP (USAH2E) Daemons
(LAH2E) Serial
Devices and Terminals (ULSAH4E) The
X Windows System (ULSAH4E) About the book UNIX and Linux System Administration Handbook, Fifth Edition, is today鈥檚 definitive guide to installing, configuring, and maintaining any UNIX or Linux system, including systems that supply core Internet and cloud infrastructure. Updated for new distributions and cloud environments, this comprehensive guide covers best practices for every facet of system administration, including storage management, network design and administration, security, web hosting, automation, configuration management, performance analysis, virtualization, DNS, security, and the management of IT service organizations. The authors鈥攚orld-class, hands-on technologists鈥攐ffer indispensable new coverage of cloud platforms, the DevOps philosophy, continuous deployment, containerization, monitoring, and many other essential topics. Whatever your role in running systems and networks built on UNIX or Linux, this conversational, well-written guide will improve your efficiency and help solve your knottiest problems. Contact us x Errata for UNIX and Linux System Administration Handbook, 4E We usually have the opportunity to make corrections before each printing. Therefore, your book's complement of errors may vary depending on its printing. To determine your printing, look at the last line of the copyright page. Found a problem not listed here? Please let
us know. Your printing: First printing Second printing Third printing Fourth printing Fifth printing colgroup Updated pages Issues colgroup p33 Page 33 The backquoted command wc -l /etc/passwd seen in the page's last command line should actually be wc -l lt; /etc/passwd. The issue is that wc -l prints out filenames as well as line counts when filenames are supplied on the command line. Here, only the line count is wanted. p44 Page 44 Contrary to Table 2.2, bash has no string equivalents to the numeric -le and -ge operators. The gt;= and lt;= operators listed in Table 2.2 do not exist. The gt; and lt; operators do exist. However, they must be backslash-escaped or double bracketed to prevent them from being interpreted as I/O redirection characters. p45 Page 45 The loop variable in the example for loop is actually called script. The text refers to it as file. p51-52 Pages 51 and 52 The regular expression shown on pages 51鈥52 for matching various spellings of Moammar Gadhafi's name is OK as originally printed. However, the accompanying text does not explain why the ([dtz][dhz]?)+ group (a component of the last name match) allows repetition. The + is there to accommodate variants such as Quadhdhafi. Really, that fragment should be ([dtz][dhz]?){1,2} so that only one or two occurrences are permissible. More generally, it's worth noting that this regex is permissive. Not every string that it matches is a legitimate spelling of Gadhafi's name. However, it should match all legitimate spellings. p153 Page 153 The cross-reference in the last line of the first paragraph under The setuid and setgid bits points to the wrong place. The referenced material is on page 105, not page 106. p466 Page 466 The route commands at the bottom of the page are shell commands, not excerpts from a startup script as the surrounding text might imply. The # character indicates root's shell prompt, not the comment character used in shell scripts. p574 Page 574 DNS Punycode names begin with xn--, not xf-- as stated in the text. p808 Page 808 In addition to having its own conventions, Debian's version of Exim configuration uses the m4 preprocessor. We don't describe the Debian system in this book. p817 Page 817 There are two errors on this page. In the sentence "The sender's address is not checked because many user agents get confused by error returns," replace "sender's address" with "recipient's address." The paragraph that starts "We next check the destination domain..." claims that DKIM verification is not performed during this step. That is incorrect; DKIM is in fact enabled. p821 Page 821 It is not entirely accurate to say that "If a message receives a pass or decline from all the routers in the sequence, it is bounced as an unroutable address." In fact, Exim may either bounce or reject such messages, depending on the context. p827 Page 827 Contrary to the statement in the Debugging section, exim does fork when given the -d flag. However, it does not detach itself from the control terminal. p852 Page 852 In the configuration file excerpt, the line that sets dkim_selector should do a lookup on $dkim_domain, not $sender_address_domain as shown. No formal errata are available for this printing yet. We will update this list after the next printing has been finalized.         x Frequently Asked Questions about ULSAH4E I'm teaching a course that uses UNIX and Linux System Administration Handbook as a textbook. Are there slides, outlines, or other materials available for instructors? Unfortunately, no. This is something we'd like to do, but the scope of the book makes it likely that different courses will choose to focus on different aspects of the material included in the book. If you have specific suggestions for supplementary materials that you would find helpful, please let
us know. I'm interested in translating your book into another language. Translation and foreign sales rights are handled by Prentice Hall. Please contact
us and we will put you in touch with the right people. Is your book available as an eBook? What formats are available? ULSAH5E is available as a printed book, a Kindle book, a Nook-compatible ePub book, a DRM-free PDF file, and as an online resource through Safari Books Online. Please see the links on the home page. Hey! I found a mistake! You suck! We usually have the opportunity to make corrections before each printing. Please send
us a note describing the issue and we will make sure it is addressed. (And thanks for your help!) There's a problem with my printed copy of the book. A small number of books were sent into distribution with missing pages or with pages out of order. If you've ended up with one of these copies, please let
us know and we will hook you up with a replacement. 

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