Linux All-in-One For Dummies
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Linux All-in-One For Dummies

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Description

8 mini books chock full of Linux!


Inside, over 800 pages of Linux topics are organized into eight task-oriented mini books that help you understand all aspects of the latest OS distributions of the most popular open-source operating system in use today. Topics include getting up and running with basics, desktops, networking, internet services, administration, security, scripting, Linux certification, and more.


This new edition of Linux All-in-One For Dummies has a unique focus on Ubuntu, while still including coverage of Debian, Red Hat, SuSE, and others. The market is looking for administrators, and part of the qualifications needed for job openings is the authentication of skills by vendor-neutral third parties (CompTIA/Linux Professional Institute)-and that's something other books out there don't address.





Install and configure peripherals, software packages, and keep everything current

Connect to the internet, set up a local area network (including a primer on TCP/IP, and managing a local area network using configuration tools and files)

Browse the web securely and anonymously

Get everything you need to pass your entry-level Linux certification exams



This book is for anyone getting familiar with the Linux OS, and those looking for test-prep content as they study for the level-1 Linux certification!
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Product details

  • Paperback | 560 pages
  • 191 x 234 x 30mm | 1,054g
  • New York, United States
  • English
  • 6th Edition
  • 1119490464
  • 9781119490463
  • 490,887

Back cover copy

Your complete guide to Linux

Whether you just want to learn more about the number-one open source operating system or you're studying for Level 1 Linux certification, this one-stop reference has everything you need. Eight task-oriented minibooks explain the different distributions, using Linux on desktops, networking, administration, security, scripting, and much, much more!

8 Books Inside... Getting Started with Linux Linux Desktops Networking The Internet Administration Security Scripting Linux Certification
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Table of contents

Introduction 1


About This Book 2


Foolish Assumptions 3


Icons Used in This Book 4


Beyond the Book 4


Where to Go from Here 5


Book 1: Getting Started with Linux 7


Chapter 1: Introducing Linux 9


What Is Linux? 9


Linux distributions 10


Making sense of version numbers 13


Linux Standard Base (LSB) 14


Contents of a Linux Distribution 15


GNU software 15


GUIs and applications 16


Networks 19


Internet servers 19


Software development 20


Online documentation 22


Managing Your PC with Linux 23


Distribution media 23


Peripheral devices 24


File systems and sharing 25


Network 25


Getting Started 26


Step 1: Install 26


Step 2: Configure 26


Step 3: Explore 27


Step 4: Find out more 27


Chapter 2: Installing Linux 29


Following the Installation Steps 29


Checking Your PC's Hardware 31


Setting Aside Space for Linux 33


Trying a Live CD 34


Installing Linux on a Flash Drive 35


Creating the bootable flash drive 35


Troubleshooting the workstation 36


Working daily with the new drive 37


Chapter 3: Troubleshooting and Configuring Linux 39


Using Text Mode Installation 40


Troubleshooting X 40


Resolving Other Installation Problems 42


Using Knoppix boot commands 42


Handling the fatal signal 11 error 45


Getting around the PC reboot problem 45


Using Linux kernel boot options 48


Setting Up Printers 48


Managing DVDs, CD-ROMs, and Flash Drives 51


Installing Other Software 51


Installing software in Debian and Ubuntu 52


Installing software in Fedora 54


Installing software in SUSE 55


Chapter 4: Trying Out Linux 57


Starting Linux 57


Playing with the Shell 60


Starting the bash shell 61


Understanding shell commands 62


Trying a few Linux commands 62


Shutting Down 64


Book 2: Linux Desktops 67


Chapter 1: GNOME and Its Derivatives 69


Getting to Know the GNOME Desktop 70


Understanding the GNOME Panels 72


The top panel 72


The desktop 72


The bottom panel 73


Looking at Unity 73


Looking at Cinnamon 73


Looking at MATE 74


Chapter 2: The KDE Plasma Desktop 75


Getting to Know the Plasma Desktop 75


Desktop contextual menus 77


Icon contextual menus 77


Understanding the Plasma Panel 78


The Main Menu button 79


Panel icons 80


Configuring the Plasma Bottom Panel 81


Configuring the Plasma Desktop 81


Chapter 3: Commanding the Shell 83


Opening Terminal Windows and Virtual Consoles 83


Using the bash Shell 84


Understanding the syntax of shell commands 85


Combining shell commands 86


Controlling command input and output 87


Typing less with automatic command completion 89


Going wild with asterisks and question marks 90


Repeating previously typed commands 91


Discovering and Using Linux Commands 92


Becoming root (superuser) 97


Managing processes 97


Working with date and time 99


Processing files 100


Writing Shell Scripts 102


Chapter 4: Navigating the Linux File System 105


Understanding the Linux File System 105


Navigating the File System with Linux Commands 110


Commands for directory navigation 110


Commands for directory listings and permissions 112


Commands for changing permissions and ownerships 114


Commands for working with files 116


Commands for working with directories 117


Commands for finding files 118


Commands for mounting and unmounting 119


Commands for checking disk-space use 120


Chapter 5: Introducing Linux Applications 123


Taking Stock of Linux Applications 124


Introducing Office Applications and Tools 124


LibreOffice.org office suite 125


Calendars 128


Calculators 128


Checking out Multimedia Applications 129


Using a digital camera 130


Playing audio CDs 131


Playing sound files 131


Burning a DVD or CD 132


Using Graphics and Imaging Apps 133


The GIMP 133


GNOME Ghostview 134


Chapter 6: Using Text Editors 137


Using GUI Text Editors 137


Text Editing with ed and vi 140


Using ed 141


Using vi 145


Book 3: Networking 151


Chapter 1: Connecting to the Internet 153


Understanding the Internet 154


Deciding How to Connect to the Internet 155


Connecting with DSL 156


How DSL works 156


DSL alphabet soup: ADSL, IDSL, SDSL 157


Typical DSL setup 158


Connecting with a Cable Modem 162


How a cable modem works 162


Typical cable modem setup 164


Chapter 2: Setting Up a Local Area Network 167


Understanding TCP/IP 167


IP addresses 169


Internet services and port numbers 170


Setting Up an Ethernet LAN 172


How Ethernet works 173


Ethernet cables 174


Configuring TCP/IP Networking 176


Connecting Your LAN to the Internet 178


Chapter 3: Going Wireless 181


Understanding Wireless Ethernet Networks 181


Understanding infrastructure and ad hoc modes 183


Understanding Wired Equivalent Privacy (WEP) 183


Setting Up Wireless Hardware 184


Configuring the Wireless Access Point 185


Configuring Wireless Networking 186


Chapter 4: Managing the Network 191


Discovering the TCP/IP Configuration Files 191


/etc/hosts 192


/etc/networks 193


/etc/host.conf 193


/etc/resolv.conf 193


/etc/hosts.allow 194


/etc/hosts.deny 195


/etc/nsswitch.conf 195


Checking Out TCP/IP Networks 196


Checking the network interfaces 196


Checking the IP routing table 196


Checking connectivity to a host 197


Checking network status 198


Sniffing network packets 199


Using GUI tools 200


Configuring Networks at Boot Time 201


Book 4: The Internet 203


Chapter 1: Browsing the Web 205


Surfing the Web 205


Like a giant spider's web 206


Links and URLs 206


Web servers and web browsers 209


Web Browsing in Linux 209


Checking out web browsers for Linux 210


Introducing Firefox's user interface 210


Changing your home page 213


Surfing the Internet with Firefox 214


Chapter 2: Using FTP 217


Using Graphical FTP Clients 218


Using gFTP 218


Introducing FileZilla 220


Using a web browser as an FTP client 221


Using the Command-Line FTP Client 223


Chapter 3: Hosting Internet Services 229


Understanding Internet Services 229


TCP/IP and sockets 230


Internet services and port numbers 233


Using the Internet Super Server 235


Using inetd 236


Using xinetd 237


Running Stand-Alone Servers 239


Starting and stopping servers manually 240


Starting servers automatically at boot time 240


Chapter 4: Managing Mail Servers 245


Installing the Mail Server 245


Using sendmail 245


A mail-delivery test 246


The mail-delivery mechanism 247


The sendmail configuration file 247


Syntax of the sendmail.cf file 253


Other sendmail files 254


The .forward file 256


The sendmail alias file 257


Chapter 5: Managing DNS 259


Understanding the Domain Name System (DNS) 259


What is DNS? 260


Discovering hierarchical domain names 261


Exploring BIND 262


Configuring DNS 266


Configuring the resolver 266


Configuring a caching name server 267


Configuring a primary name server 278


Book 5: Administration 281


Chapter 1: Introducing Basic System Administration 283


Taking Stock of System Administration Tasks 284


Becoming root 285


Using the su - command 285


Recovering from a forgotten root password 286


Understanding How Linux Boots 287


Understanding the init process 288


Examining the /etc/inittab file 289


Trying a new run level with the init command 291


Understanding the Linux startup scripts 291


Manually starting and stopping servers 292


Automatically starting servers at system startup 293


Taking Stock of Linux System Configuration Files 294


Monitoring System Performance 296


Using the top utility 297


Using the uptime command 298


Using the vmstat utility 299


Checking disk performance and disk usage 300


Viewing System Information with the /proc File System 302


Understanding Linux Devices 305


Device files 305


Persistent device naming with udev 307


Managing Loadable Driver Modules 308


Loading and unloading modules 308


Understanding the /etc/modprobed files 309


Scheduling Jobs in Linux 310


Scheduling one-time jobs 310


Scheduling recurring jobs 312


Introducing Some GUI System Administration Tools 316


Chapter 2: Managing Users and Groups 319


Adding User Accounts 320


Managing user accounts by using a GUI user manager 320


Managing user accounts by using commands 322


Understanding the /etc/passwd File 323


Managing Groups 324


Setting Other User and Group Administration Values 325


Exploring the User Environment 326


Changing User and Group Ownership of Files 328


Chapter 3: Managing File Systems 331


Exploring the Linux File System 331


Understanding the file-system hierarchy 333


Mounting a device on the file system 336


Examining the /etc/fstab file 337


Sharing Files with NFS 339


Exporting a file system with NFS 340


Mounting an NFS file system 341


Backing Up and Restoring Files 341


Selecting a backup strategy and media 342


Commercial backup utilities for Linux 343


Using the tape archiver: tar 343


Accessing a DOS or Windows File System 348


Mounting a DOS or Windows disk partition 348


Mounting those ancient DOS floppy disks 349


Mounting an NTFS partition 351


Chapter 4: Working with Samba and NFS 353


Sharing Files with NFS 353


Exporting a file system with NFS 354


Mounting an NFS file system 357


Setting Up a Windows Server Using Samba 357


Installing Samba 359


Configuring Samba 359


Trying out Samba 360


Book 6: Security 363


Chapter 1: Introducing Linux Security 365


Why Worry about Security? 366


Establishing a Security Framework 366


Determining business requirements for security 368


Performing risk analysis 368


Establishing a security policy 370


Implementing security solutions (mitigation) 371


Managing security 372


Securing Linux 372


Understanding the host-security issues 373


Understanding network-security issues 374


Delving Into Computer Security Terminology and Tools 375


Keeping Up with Security News and Updates 379


Chapter 2: Securing Linux 381


Securing Passwords 382


Shadow passwords 382


Pluggable authentication modules (PAMs) 383


Protecting Files and Directories 384


Viewing ownerships and permissions 385


Changing file ownerships 385


Changing file permissions 385


Setting default permission 386


Checking for set user ID permission 388


Encrypting and Signing Files with GnuPG 389


Understanding public key encryption 389


Understanding digital signatures 390


Using GPG 391


Monitoring System Security 396


Securing Internet Services 397


Turning off stand-alone services 397


Configuring the Internet super server 398


Configuring TCP wrapper security 398


Using Secure Shell for Remote Logins 399


Setting Up Simple Firewalls 402


Using NAT 405


Enabling packet filtering on your Linux system 406


Security Files to Be Aware Of 411


Chapter 3: Vulnerability Testing and Computer Security Audits 413


Understanding Security Audits 414


Nontechnical aspects of security audits 414


Technical aspects of security audits 415


Implementing a Security Test Methodology 416


Some common computer vulnerabilities 417


Host-security review 418


Network-security review 422


Vulnerability Testing Types 424


Exploring Security Testing Tools 425


Book 7: Scripting 429


Chapter 1: Introductory Shell Scripting 431


Trying Out Simple Shell Scripts 432


Exploring the Basics of Shell Scripting 433


Storing stuff 434


Calling shell functions 435


Controlling the flow 435


Exploring bash's built-in commands 439


Chapter 2: Working with Advanced Shell Scripting 443


Trying Out sed 443


Working with awk and sed 446


Step 1: Pull out the ISBN 447


Step 2: Calculate the 13th digit 448


Step 3: Add the 13th digit to the other 12 449


Step 4: Finish the process 450


Final Notes on Shell Scripting 450


Chapter 3: Programming in Linux 451


An Overview of Programming 452


Exploring the Software-Development Tools in Linux 453


GNU C and C++ compilers 454


The GNU make utility 458


The GNU debugger 466


Understanding the Implications of GNU Licenses 473


The GNU General Public License 473


The GNU Library General Public License 474


Book 8: Linux Certification 477


Chapter 1: Studying for the Linux Essentials Certification Exam 479


Overview of Linux Essentials 479


The Linux Community and a Career in Open Source 480


Finding Your Way on a Linux System 482


The Power of the Command Line 483


The Linux Operating System 485


Security and File Permissions 486


Chapter 2: Studying for the CompTIA Linux+ Powered by LPI Certification Exams 489


Overview of the CompTIA Linux+ Exams 489


System Architecture 490


Linux Installation and Package Management 492


GNU and Unix Commands 494


Devices, Linux File Systems, Filesystem Hierarchy Standard 495


Shells, Scripting, and Data Management 497


User Interfaces and Desktops 498


Administrative Tasks 500


Essential System Services 501


Networking Fundamentals 502


Security 504


Chapter 3: Other Linux Certifications 507


Vendor-Neutral Certifications 507


Vendor-Specific Certifications 508


Index 509
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About Emmett Dulaney

Emmett Dulaney is a university professor and columnist for Certification Magazine. An expert on operating systems and certification, he is the author of CompTIA Security+ Study Guide, CompTIA A+ Complete Study Guide, and CompTIA Network+ Exam Cram.
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64 ratings
3.59 out of 5 stars
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2 17% (11)
1 2% (1)
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