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Linux Administrator's Guide 5th edition. Electronic library of the system administrator


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Unix and Linux System Administrator's Guide 4th Edition

Books. By year of publication

Description:
The new edition of the world-famous book "Unix and Linux: A System Administrator's Guide" by recognized authorities in the field of system administration of UNIX and Linux systems contains accurate and complete information on almost all aspects, including memory management, network design and management, email, web hosting, scripting, software configuration management, performance analysis, Windows interfacing, virtualization, DNS, security, IT service provider management and much more. The authors present important facts clearly and simply, accompanied by real-life examples.

The reference book differs from previous editions in that it covers modern versions of UNIX and Linux systems - Solaris, HP-UX, AIX, Ubuntu Linux, openSUSE and Red Hat Enterprise Linux.
The authors paid special attention to the administration of networks running UNIX and Linux systems. Coming on the 20th anniversary of the world's best-selling UNIX systems administration book, this edition is made even better by covering common Linux system variants: Ubuntu, openSUSE, and RHEL.

The book will be extremely useful to all system administrators, as well as users of UNIX and Linux systems, students, teachers and network technology specialists.

Mac OS X Lion. User Bible

Books. By year of publication

Year: 2012
Author: Gruman G. / Gruman G.
Translator: team edited by Dr. physics and mathematics Sciences Klyushina D.A.
Genre: Popular science publication
Publisher: Dialectics
ISBN: 978-5-8459-1764-5 (Russian)
Series:
Russian language
Format: PDF
Number of pages: 456 (2 book pages each)

Description:
The book explores the latest version of the Mac OS X Lion operating system and its functionality that combines the power of a Mac with the convenience of an iPad, delving deep into all new functionality, including multi-touch gestures, the Mac App Store, and Mission. Control and more, covers both the basics to give newbies a thorough understanding of the Mac system, as well as more advanced information for those who want expert advice, tips, tricks, and more.

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Tutorial for Mac OS X Lion

Books. By year of publication

Year: 2012
Author: Vasily Leonov
Genre: Self-teacher
Publisher: Eksmo
Series: Computer 100%
Russian language
Format: PDF
Quality: eBook (originally computer)
Number of pages: 386

Description:
This book will help pave your way into the world of rich features of the Mac OS X Lion operating system. With its help, the reader will get acquainted with the most diverse aspects of the operating system.
The book has everything - from the very basics, thanks to which novice users can immediately find their way around and start working with a Mac computer, to more complex aspects of work that even experienced users are unlikely to be able to figure out on their own, despite the convenient and intuitive interface of the Mac OS operating system X Lion.

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Programming for iPhone and iPad (2nd edition)

Books. By year of publication

Year: 2012
Author: D. Pailon, T. Pailon
Translator: E. Matveev
Publisher: Peter
Series: Head First
Russian language

Format: pdf
Number of pages: 624

Description:
With the advent of the iPhone, the world has changed. Then with the advent of the iPhone 4 it changed again. And now the revolutionary iPad tablet has been added to the iPhone. Modern iOS devices are used in business and education, for work and entertainment, and tens of thousands of programmers and well-known software companies are already successfully working on the App Store.
Let's imagine that you have a brilliant idea for an application for iPhone and iPad. Where to begin? This book will help you develop your first application in no time. Not only will you learn how to design an app for Apple devices and make it unique, but you'll also become proficient in Objective-C programming principles and iPhone SDK tools, including Interface Builder and Xcode. Apple provides the software, this book provides the knowledge - all you need is passion and a desire to learn how to develop original and commercially successful applications for the iPhone and iPad.

A special feature of this publication is the unique way of presenting the material, which distinguishes the "Head First" series by O'Reilly from the many boring books on programming.

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Virtual laboratory on computer networks.

Books. By year of publication

Year: 2011
Author: Grigoriev V.M.
Genre: Educational literature
Publisher: Dnepropetrovsk
Russian language
Format: PDF

Number of pages: 169

Description:
A description of a virtual training laboratory on computer networks based on Qemu virtual machines in the GNS3 shell using the RouterOS operating system from Mikrotik is presented. The laboratory is deployed on Ubuntu Linux. The virtual laboratory is accessible via OpenVPN using RSA certificates. To access the Ubuntu remote desktop, Nomachine technology based on the X protocol is used. Shows how to deploy a network laboratory at home or in an organization.

The virtual training laboratory allows you to use interconnected virtual machines running RouterOS operating systems instead of real equipment. A laboratory workshop is presented to study the following network technologies: Ethernet bridging, DHCP, load balancing, EoIP, NAT, RIP routing, OSPF and BGP, route redistribution, PPP, PPTP, SSTP, L2TP, OpenVPN, 2nd and 3rd VPNs th level, IPSec, MPLS, VPLS, VRF.

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Wireless connection.

Books. By year of publication

Year: 2011
Author: Team of authors
Genre: Manual
Publisher: Texas Instruments
Russian language
Format: PDF
Quality: Originally computer (eBook)
Number of pages: 63

Description:
TI manufactures the broadest portfolio of wireless integrated circuits and offers cost-effective solutions for short and long range, mesh and IP networks, wireless connectivity to mobile devices, and ISM devices. TI wireless connectivity technologies include Wi-Fi®, Bluetooth®, Bluetooth low energy, ANT™, ZigBee®, ZigBee RF4CE, RFID, 6LoWPAN and PurePath™ Wireless audio, as well as RF integrated circuit sets and proprietary protocols for frequency bands up to 1 GHz and 2.4 GHz.

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Web hacking basics. Attack and defense.

Books. By year of publication

Year: 2011
Author: Zhukov Yu.
Genre: Computer literature
Publisher: © Peter Publishing House LLC, 2011
Russian language
Format: PDF
Quality: Originally computer (eBook)
Number of pages: 176

Description:
A book for everyone interested in website hacking, with parallel coverage of aspects of reliable protection. The presentation is based on educational examples that the user creates on his computer, and real vulnerabilities of widely used free website engines already available in the test system.
The work is carried out in two hacker Linux distributions - Damn Vulnerable Linux and Back Track 4, running on the user's local computer running a virtual machine in Windows OS.
The information provided in this book can be used for informational and educational purposes only. The publisher is not responsible for the unlawful use by readers of the information received, which leads to a violation of the law.

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Book about PF (2nd edition)

Books. By year of publication

Year: 2011
Author: Peter N.M. Hansteen/Peter N.M. Hanstin
Translator: Alexey Mikhailov, Demin Evgeniy
Russian language
Format: PDF
Quality: Originally computer (eBook)
Number of pages: 140

Description:
OpenBSD's PF packet filter, which has enjoyed considerable success and attention, was first released as part of OpenBSD 3.0 in late 2001.
Before you know more about the history of PF, in a nutshell we can say that PF came into being out of necessity for OpenBSD developers and users. Since its first release, PF has evolved significantly to become a powerful and free tool for firewalling, load balancing, and traffic management. When PF is used in combination with CARP and pfsync, it allows system administrators not only to protect their services from attacks, but also to increase their reliability through redundancy, and to increase the speed of services by scaling using pools of servers managed by PF and relayd.

This book was intended to be a bridge across the chasm. If you are a beginner, it will quickly lead you to OpenBSD and PF. If you are an experienced user, this book may show you some examples of more complex PF applications that solve problems beyond the typical ones.

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Linux Tools for Windows Programmers

Books. By year of publication

Year: 2011
Author: Tsilurik Oleg
Russian language
Format: PDF
Quality: Originally computer (eBook)
Number of pages: 150

Description:
A draft book is presented that, in a concise manner, identifies those places in the practice of a programmer-developer that, despite the commonality of conceptual concepts, are strikingly different in Linux from what is familiar to a Windows programmer.
The purpose of the book: to point out such places so that you don’t have to search at random for the answer to the question: “how is this done in Linux?”

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Practical programming of Atmel AVR microcontrollers in assembly language

Books. By year of publication

Year: 2011
Author: Revich Yu.V.
Genre: Microcontrollers
Publisher: BHV-Petersburg
Russian language
Format: DjVu

Number of pages: 354

Description:
The principles of operation, architectural features and programming techniques for Atmel AVR microcontrollers are outlined. Ready-made recipes are provided for programming the basic functions of modern microelectronic equipment: from responding to a button press or building a dynamic display to complex protocols for recording data in external memory or features of connecting a real-time clock. Particular attention is paid to the exchange of data from microelectronic devices with a personal computer, and examples of programs are provided.
The book takes into account the features of modern AVR models and related microcircuits of recent years of production. The applications contain the basic parameters of AVR microcontrollers, a list of commands and program texts for them, as well as a list of terms and abbreviations used. For students, engineers and radio amateurs.

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Programming in C for AVR and PIC microcontrollers (2nd edition)

Books. By year of publication

Year: 2011
Author: Shpak Yu.A.
Genre: Programming, microcontrollers
Publisher: Corona-Vek, MK-Press
Russian language
Format: DjVu
Quality: Scanned pages
Number of pages: 546

Description:
The book covers programming in C language for AVR microcontrollers using the WinAVR and CodeVisionAVR compilers, as well as PIC microcontrollers using the CCS-PICC, mikroC and SZO/32 compilers. The architecture and hardware of both the traditional eight-bit AVR and PIC microcontrollers and the new ATxmega, PIC24 and PIC32 families are briefly reviewed. A description of software development tools is given, including program emulation using AVR Studio and MPLAB. The standard syntax of the C language and preprocessor directives, as well as the features of programming in this language for microcontrollers, are briefly discussed. The book contains programming examples in C, as well as a reference book describing the assembly instruction system of the AVR (including ATxmega) and PIC (including PIC24) microcontrollers.

CD for the book:
Format: ISO
Russian language
Size: 660.1 MB

The contents of the CD included with the book are divided into the following directories:
Datasheets - technical descriptions (in English) of popular microcontrollers AVR (avr subfolder) and PIC (pic subfolder), as well as devices involved in the projects discussed in the book;
Projects - examples of programs discussed in the book (examples are distributed in folders according to the type of compiler: szo, c32, ccs-picc, Code-VisionAVR, mikroC, WinAVR);
Sowtware - installation packages of software tools (compilers, development tools and programmers) discussed in the book: AVR Studio, CodeVisionAVR, PonyProg2000, USBProg, WinAVR; SZO, C32, CCS-PICC, MikroC, MPLAB.
DOWNLOAD CD-Disk from Torrent

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PyQt. Creating Windowed Applications in Python3

Books. By year of publication

Year: 2011
Author: Prokhorenok N.A.
Publisher: Electronic author's edition
Russian language
Format: PDF
Quality: Originally computer (eBook)
Number of pages: 243

Description:
The book describes the basic capabilities of the PyQt library, which allows you to create applications with a graphical interface in Python. Discusses methods for processing signals and events, managing window properties, creating a form using the Qt Designer program, working with multi-threaded applications, as well as all the main components (buttons, text fields, lists, tables, etc.) and options for their placement inside the window. The book will be useful as a tutorial for beginning developers. Readers already with programming experience can use the book as a reference. Versions covered: PyQt 4.8.3 (includes Qt 4.7.1) and Python 3.2.0.

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Parallel programming technologies

Books. By year of publication

Year: 2011
Author: Lupin S.A., Posypkin M.A.
Genre: Programming
Publisher: FORUM Publishing House - INFRA-M
Russian language
Format: PDF
Quality: Scanned pages
Number of pages: 208

Description:
Modern means of developing parallel programs for multiprocessor and multicore systems with shared and distributed memory are considered: MPI libraries, POSIX Threads, the OrepMP system. The presentation of the material is based on a model of gradual complication and is based on examples of the implementation of various computational algorithms.

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Computer Networks (3rd Edition)

Books. By year of publication

Year: 2011
Author: Kuzin A.V.
Series: Vocational education
Russian language
Format: DjVu
Quality: Scanned pages
Number of pages: 192

Description:
General issues of building computer networks are considered: network architectures, hardware components, communication lines, network models, tasks and functions at the levels of the OSI network model, differences and features of common protocols at different levels, principles of addressing in the network, methods of access to the data transmission medium. The features of the main operating systems, structure and information services of territorial networks are given.
For students of secondary specialized educational institutions studying in the specialties “Automated information processing and control systems”, “Computer software and automated systems”

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Linux OS - command line, utilities, scripts.

Books. By year of publication

Year: 2011
Genre: Tutorial
Publisher: Sarov, Vector ++
Series: Modern programming for schoolchildren, book 1
Russian language
Format: PDF
Quality: Scanned pages
Number of pages: 25

Description:
Lectures on the basics of working in OS Linux which include.
1.What is Linux
2.What is Ubuntu and how to install it
3.Introduction and training in working in the vi text editor
4.Work in the terminal
5. Short course in programming in shell and bash languages
6.Building scripts in bash language.

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UNIX operating system

Books. By year of publication

Year: 2010
Author: Robachevsky A., Nemnyugin S., Stesik O.
Genre: Manual
Publisher: BHV-Petersburg
ISBN: 978-5-94157-538-1
Russian language
Format: DjVu
Number of pages: 656

Description:
The book is the second edition of a textbook of the same name recommended by the Ministry of General and Professional Education of Russia. The basics of organization, ideology and architecture that unite different versions of UNIX are given. Covers: kernel architecture (input/output subsystems, memory and process management, and file subsystem), programming interface (system calls and basic library functions), user environment (shell, basic commands and utilities) and network support (protocol family TCP/IP, network subsystem architecture, socket programming interfaces and TLI).
The second edition includes new material on the Linux and FreeBSD operating systems, removed topics that are no longer relevant, corrected the set of described system calls and library functions, and added a glossary of English terms.
For students, teachers, users and system administrators.

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iPhone Programming

Books. By year of publication

Year: 2010
Author: Maher A.
Genre: Manual
Publisher: Eksmo
Series: Highest level
Russian language
Format: PDF
Quality: Scanned pages + recognized text layer
Number of pages: 368

Description:
The book is intended for professional programmers who want to create applications for the iPhone 3G and iPod Touch using the Apple SDK. Mastering the material does not require prior study of the Objective-C language - its basics are given at the beginning of the book.

The book describes in detail the basics of the iPhone SDK. Much of the material is devoted to user interface development, the SQLite database engine, and the Hbxml2 XML processing library. Much attention is paid to the capabilities of the iPhone as a GPS navigator.

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Programming in Objective-C 2.0

Books. By year of publication

Year: 2010
Author: Stephen Kochan
Translator: M. Rozovsky
Publisher: ECOM Publishers
Series: Developer Library
Russian language
Quality: Scanned pages + recognized text layer
Format: pdf
Number of pages: 583

Description:
A complete introduction to the Objective-C language for developing applications on Mac OS X and iPhone. Objective-C has become the standard programming language for developing applications on the Mac OS X and iPhone platforms. This powerful yet simple C-based object-oriented programming language is widely used not only on OS X, but also on many operating systems that support the gcc compiler, including Linux, Unix, and Windows. This book is a detailed step-by-step introduction to the Objective-C language. You do not need any experience with C or object-oriented programming languages. Working with Objective-C is demonstrated through many detailed examples designed to solve everyday problems.
The second edition of this book has been revised and expanded for Objective-C 2.0. It now explores the Foundation's extensive built-in class library and iPhone SDK for developing applications on the iPhone and iPod Touch platforms.

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Qt4.5. Professional programming in C++

Books. By year of publication

Year: 2010
Author: Max Schlee
Genre: Reference Guide
Publisher: BHV-Petersburg
Series: In the original
Format: DjVu + OCR for search
Quality: Scanned pages
Number of pages: 896
Russian language

Clean code. Creation, analysis and refactoring

Books. By year of publication

Year: 2010
Author: Martin R.
Genre: programming
Publisher: CJSC Publishing House "Piter"
Series: Programmer's Library
Format: DjVu
Quality: Scanned pages
Number of pages: 464
Russian language

Description:
This book is about good programming. It's full of real code examples.
We will look at the code from different directions: top-down, bottom-up, and even from the inside. After reading the book, you will learn a lot about code. Moreover, you will learn to distinguish good code from bad.
You will learn how to write good code and how to transform bad code into good code. The book consists of three parts. The first part outlines the principles, patterns, and techniques for writing clean code; A large amount of code examples is provided. The second part consists of practical scenarios of increasing complexity.
Each scenario is an exercise in cleaning up code or transforming problematic code into code with fewer problems. The third part of the book is a concentrated expression of its essence. It consists of one chapter with a list of heuristics and code smells collected during the analysis. This part is a knowledge base that describes our way of thinking in the process of reading, writing and cleaning code.

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Creation, maintenance and administration of networks

Books. By year of publication

Year: 2010
Author: Vatamanyuk A.I.
Publisher: Peter
Series: 100%
Russian language
Format: PDF
Quality: Originally computer (eBook)
Number of pages: 232

Description:
What are computer networks? Just a few computers and the wires connecting them? Yes and no. And “no”, first of all, because the design and operating mechanism of each network are unique and are far from being as simple as it might seem to the average user.
This book contains all the necessary information about the design and creation of networks of various types and their modes of operation, as well as all the intricacies of maintaining and administering networks. Master networking 100% with this most detailed and accessible practical guide.

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Fiber Optic Networks and Communication Systems (2nd Edition)

Books. By year of publication

Year: 2010
Author: Sklyarov O.K.
Genre: Tutorial
Publisher: St. Petersburg: Publishing House "Lan"
Russian language
Format: PDF
Quality: Scanned pages
Number of pages: 267

Description:
The main protocols used in optical networks, issues of system testing, and methods for transmitting information flows are considered. Much attention is paid to digital hierarchy equipment, compaction issues, and optical access networks. New passive and active network elements, domestic and foreign cables are considered. The principles of operation of optical Raman (SRS) amplifiers, an electroabsorption light modulator widely used in modern high-speed transmission systems, are covered.
The textbook is intended for students of technical universities. The book will also be useful to specialists in fiber-optic communication systems.

The new (4th!) edition of the world-famous book "Unix and Linux: A System Administrator's Guide" by recognized authorities in the field of system administration of UNIX and Linux systems contains accurate and complete information on almost all aspects, including memory management, design and network management, email, web hosting, scripting, software configuration management, performance analysis, Windows interoperability, virtualization, DNS, security, IT service provider management and much more. The authors present important facts clearly and simply, accompanied by real-life examples.

The reference book differs from previous editions in that it covers modern versions of UNIX and Linux systems - Solaris, HP-UX, AIX, Ubuntu Linux, openSUSE and Red Hat Enterprise Linux. The authors paid special attention to the administration of networks running UNIX and Linux systems.

Coming on the 20th anniversary of the world's best-selling UNIX systems administration book, this edition is made even better by covering common Linux system variants: Ubuntu, openSUSE, and RHEL.

System administration in the book is considered from a practical point of view. It is an invaluable reference for both new administrators and seasoned professionals. It details good practices and covers all aspects of system administration, including

  • memory management,
  • network design and management,
  • email, web hosting,
  • creating scripts,
  • software configuration management,
  • performance analysis, interaction with the Windows system,
  • virtualization, DNS,
  • safety,
  • management of IT service providers and much more.

This book reflects the current versions of the following operating systems:

  • Ubuntu Linux
  • openSUSE Linux
  • Red Hat Enterprise Linux
  • Oracle America SolarisTM (formerly Sun Solaris)
  • HP HP-UX
  • IBM AIX

The book will be extremely useful to all system administrators, as well as users of UNIX and Linux systems, students, teachers and network technology specialists.

"As an author, editor and publisher, I've never given much importance to competition - except in a few cases. This is one of those cases. The UNIX System Administration Handbook is one of the few books we look up to." - Tim O'Reilly, founder of O'Reilly Media (from the foreword).
"This book is fascinating and a useful reference book. If you use UNIX and Linux systems, this should be your go-to book. It provides a succinct, no-nonsense history of these systems. It contains accurate information that is presented in a clear, memorable way. "-Jason A. Nunnelley
"This is a comprehensive guide to how to maintain and maintain the health of UNIX and Linux systems. The authors present the facts with practical advice and real-world examples. Their perspective on the differences between the systems is valuable for anyone working in heterogeneous computing environments." - Pat Parseghian

Book author:

Description of the book

Currently, you can drown in a sea of ​​information on UNIX and Linux, so we decided to use this book to chart our course and meet the needs of system administrators, thereby occupying a very specific niche in the ecosystem of various kinds of man pages, blogs, magazines, books and other reference materials. First, this is a guide that examines the various components of the main administration systems and how they work together. In many cases where we have had to choose between different implementations of an idea, we have described the advantages and disadvantages of the main options. Second, this is a quick reference that contains everything you need to know to perform common tasks on various versions of UNIX and Linux. systems. For example, the ps command, which displays the status of current processes, supports more than 80 command line switches (options) on Linux systems. But just a few key combinations satisfy 99% of a system administrator's needs (see Section 5.7). Finally, this book focuses on the administration of enterprise servers and networks, i.e. on the serious topic of system administration. It is not difficult to install an operating system on a separate computer; it is much more difficult to maintain stable operation of a virtualized network environment under heavy loads, disk failures and deliberate attacks. Therefore, we describe methods and practical methods that will allow you to “lift” “fallen” networks, as well as choose solutions that will remain relevant as your site expands and becomes more complex and its heterogeneity changes.

From the publisher

The new (4th!) edition of the world-famous book "Unix and Linux: A System Administrator's Guide" by recognized authorities in the field of system administration of UNIX and Linux systems contains accurate and complete information on almost all aspects, including memory management, design and network management, email, web hosting, scripting, software configuration management, performance analysis, Windows interoperability, virtualization, DNS, security, IT service provider management and much more. The authors present important facts clearly and simply, accompanied by real-life examples.
The reference book differs from previous editions in that it covers modern versions of UNIX and Linux systems - Solaris, HP-UX, AIX, Ubuntu Linux, openSUSE and Red Hat Enterprise Linux. The authors paid special attention to the administration of networks running UNIX and Linux systems.
Coming on the 20th anniversary of the world's best-selling UNIX systems administration book, this edition is made even better by covering common Linux system variants: Ubuntu, openSUSE, and RHEL.
System administration in the book is considered from a practical point of view. It is an invaluable reference for both new administrators and seasoned professionals. It details good practices and covers all aspects of system administration, including

  • memory management,
  • network design and management,
  • email, web hosting,
  • creating scripts,
  • software configuration management,
  • performance analysis, interaction with the Windows system,
  • virtualization, DNS,
  • safety,
  • management of IT service providers and much more.

This book reflects the current versions of the following operating systems:

  • Ubuntu Linux
  • openSUSE Linux
  • Red Hat Enterprise Linux
  • Oracle America SolarisTM (formerly Sun Solaris)
  • HP HP-UX
  • IBM AIX

The book will be extremely useful to all system administrators, as well as users of UNIX and Linux systems, students, teachers and network technology specialists.
“As an author, editor and publisher, I have never placed much importance on competition—except in a few cases. This is one of those cases. UNIX System Administration Handbook is one of the few books we look up to." — Tim O'Reilly, founder of O'Reilly Media (from the foreword).
“This book is fascinating and useful as a reference. If you use UNIX and Linux systems, this should become your reference book. It briefly and without unnecessary ranting describes the history of these systems. It contains accurate information that is presented in a vivid and memorable manner. "-Jason A. Nunnelley
“This is a comprehensive reference on how to maintain and keep UNIX and Linux systems running. The authors present the facts, accompanied by practical advice and real-life examples. Their perspective on the differences between systems is valuable for anyone working in heterogeneous computing environments.” — Pat Parseghian

Unix and Linux. System Administrator's Guide. 4th edition.

Unix and Linux: A System Administrator's Guide, 4th Edition by Evi Nemeth, Garth Snyder, Trent Hayne and Ben Whaley, is a practical guide in which renowned authors share their collective system administration experiences with readers and offer recommendations that have stood the test of time. It contains many practical examples and tips. This is not about how to use UNIX or Linux at home. It describes the use of operating systems in commercial companies, government agencies, and universities. The book details issues related to the operation of UNIX and Linux systems on networks. This is the most difficult aspect of system administration, and this is where help for readers will be most helpful. This guide covers the main variants of UNIX and Linux.

The book is divided into three parts - “Basics of Administration”, “Working on the Network” and “Miscellaneous”. Part I, "Administration Fundamentals," provides a general overview of UNIX and Linux systems from a system administrator's perspective. The chapters in this part provide the basic information and techniques needed to manage an autonomous system. This part describes the protocols used in UNIX systems, as well as methods for building, expanding and administering networks and Internet servers. High-level network software is also discussed here. Topics covered include the Domain Name System (DNS), Network File System (NFS), email, and network management tools. Part II, "Networking," describes the protocols used on UNIX systems and how to set up, expand, and operate Internet-connected networks and servers. It also covers high-level networking software, as well as the domain name system, network file system, email, and network management. Part III, Miscellaneous, contains a variety of supporting information. Some chapters discuss additional functionality, such as support for server virtualization. Other chapters provide guidance on topics ranging from environmental issues to systems administration team principles. At the end of each chapter there is a set of practical tasks. Each exercise is given a difficulty level rating, taking into account both the complexity of the task itself and the time spent on its completion.

Publisher - Williams

Year of publication - 2012

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