LPIC-1: Linux Professional Institute Certification Study Guide : (Exams 101 And 102)

by Smith, Roderick W.

• ISBN13: 9781118495636
• ISBN10: 1118495632
• Edition: 3rd
• Format: Paperback
• Copyright: 2013-01-14
• Publisher: Sybex

Summary

Updated for the latest LPIC-1 Exams 101 and 102 The LPIC-1 certification measures your understanding of the Linux Kernel. As the Linux server market continues to grow, so does the demand for certified Linux administrators. Prepare for the latest versions of the LPIC-1 exams 101 and 102 with the new edition of this detailed Study Guide. This practical book covers key Linux administration topics and all exam objectives and includes real-world examples and review questions to help you practice your skills. In addition, you'll gain access to a full set of online study tools, including bonus practice exams, electronic flashcards, and more. Prepares candidates to take the Linux Professional Institute exams 101 and 102 and achieve their LPIC-1 certification Covers all exam objectives and features expanded coverage on key topics in the exam Includes real-world scenarios, and challenging review questions Gives you online access to bonus practice exams, electronic flashcards, and a searchable glossary Topics include system architecture, installation, GNU and Unix commands, Linux filesystems, essential system services, networking fundamentals, security, and more Approach the LPIC-1 certification exams with confidence, with LPIC-1: Linux Professional Institute Certification Study Guide, Third Edition.

Author Biography

Roderick W. Smith, LPIC-1, LPIC-2, CompTIA Linux+, is a Linux networking expert and the author of over a dozen books on open source technologies, including LPIC-2: Linux Professional Institute Certification Study Guide (Exams 201 and 202), CompTIA Linux+ Study Guide, Linux Administrator Street Smarts, and Linux Essentials, all from Sybex. He is also a former contributor to Linux Magazine.

Table of Contents

Introduction xxiii

Exam Objectives xxix

- Exam 101 Objectives xxix

- Exam 102 Objectives xxxv

Assessment Test xli

Answers to the Assessment Test xlviii

Part I Exam 101 1

Chapter 1 Exploring Linux Command-Line Tools 3

Understanding Command-Line Basics 4

Exploring Your Linux Shell Options 4

Using a Shell 5

Exploring Shell Configuration 12

Using Environment Variables 12

Getting Help 13

Using Streams, Redirection, and Pipes 14

Exploring Types of Streams 15

Redirecting Input and Output 15

Piping Data Between Programs 17

Generating Command Lines 18

Processing Text Using Filters 19

File-Combining Commands 19

File-Transforming Commands 21

File-Formatting Commands 25

File-Viewing Commands 28

File-Summarizing Commands 30

Using Regular Expressions 32

Understanding Regular Expressions 32

Using grep 33

Using sed 35

Summary 37

Exam Essentials 38

Review Questions 39

Chapter 2 Managing Software 45

Package Concepts 46

Using RPM 48

RPM Distributions and Conventions 48

The rpm Command Set 51

Extracting Data from RPMs 54

Using Yum 55

RPM and Yum Configuration Files 59

RPM Compared to Other Package Formats 60

Using Debian Packages 61

Debian Distributions and Conventions 61

The dpkg Command Set 62

Using apt-cache 65

Using apt-get 65

Using dselect, aptitude, and Synaptic 69

Reconfiguring Packages 71

Debian Packages Compared to Other Package Formats 71

Configuring Debian Package Tools 72

Converting Between Package Formats 73

Package Dependencies and Conflicts 75

Real and Imagined Package Dependency Problems 75

Workarounds for Package Dependency Problems 76

Startup Script Problems 78

Managing Shared Libraries 79

Library Principles 79

Locating Library Files 81

Library Management Commands 83

Managing Processes 85

Understanding the Kernel: The First Process 85

Examining Process Lists 86

Understanding Foreground and Background

Processes 92

Managing Process Priorities 93

Killing Processes 94

Summary 96

Exam Essentials 96

Review Questions 98

Chapter 3 Configuring Hardware 105

Configuring the Firmware and Core Hardware 106

Understanding the Role of the Firmware 106

IRQs 110

I/O Addresses 113

DMA Addresses 114

Boot Disks and Geometry Settings 114

Coldplug and Hotplug Devices 117

Configuring Expansion Cards 118

Configuring PCI Cards 118

Learning about Kernel Modules 120

Loading Kernel Modules 121

Removing Kernel Modules 123

Configuring USB Devices 124

USB Basics 124

Linux USB Drivers 125

USB Manager Applications 126

Configuring Hard Disks 126

Configuring PATA Disks 127

Configuring SATA Disks 128

Configuring SCSI Disks 128

Configuring External Disks 130

Designing a Hard Disk Layout 130

Why Partition? 130

Understanding Partitioning Systems 131

An Alternative to Partitions: LVM 134

Mount Points 134

Common Partitions and Filesystem Layouts 135

Creating Partitions and Filesystems 136

Partitioning a Disk 137

Preparing a Partition for Use 141

Maintaining Filesystem Health 148

Tuning Filesystems 148

Maintaining a Journal 152

Checking Filesystems 153

Monitoring Disk Use 155

Mounting and Unmounting Filesystems 158

Temporarily Mounting or Unmounting Filesystems 159

Permanently Mounting Filesystems 164

Summary 166

Exam Essentials 167

Review Questions 169

Chapter 4 Managing Files 175

Using File Management Commands 176

File Naming and Wildcard Expansion Rules 176

File Commands 178

File Archiving Commands 183

Managing Links 190

Directory Commands 191

Managing File Ownership 192

Assessing File Ownership 192

Changing a File’s Owner 193

Changing a File’s Group 194

Controlling Access to Files 194

Understanding Permissions 194

Changing a File’s Mode 199

Setting the Default Mode and Group 202

Changing File Attributes 204

Managing Disk Quotas 205

Enabling Quota Support 205

Setting Quotas for Users 206

Locating Files 207

The FHS 207

Tools for Locating Files 211

Summary 215

Exam Essentials 216

Review Questions 218

Chapter 5 Booting Linux and Editing Files 223

Installing Boot Loaders 224

Boot Loader Principles 225

Using GRUB Legacy as the Boot Loader 228

Using GRUB 2 as the Boot Loader 234

Using Alternative Boot Loaders 236

Understanding the Boot Process 237

Extracting Information about the Boot Process 238

Locating and Interpreting Boot Messages 238

The Boot Process 239

Dealing with Runlevels and the Initialization Process 240

Runlevel Functions 240

Identifying the Services in a Runlevel 241

Managing Runlevel Services 243

Checking Your Runlevel 245

Changing Runlevels on a Running System 246

Using Alternative Boot Systems 249

Configuring Upstart 249

Using systemd 251

Editing Files with Vi 252

Understanding Vi Modes 252

Exploring Basic Text-Editing Procedures 253

Saving Changes 256

Summary 256

Exam Essentials 257

Review Questions 259

Part II Exam 102 265

Chapter 6 Configuring the X Window System,

Localization, and Printing 267

Configuring Basic X Features 268

X Server Options for Linux 268

Methods of Configuring X 270

X Configuration Options 273

Obtaining X Display Information 281

Configuring X Fonts 283

Font Technologies and Formats 284

Configuring X Core Fonts 284

Configuring a Font Server 287

Configuring Xft Fonts 288

Managing GUI Logins 289

The X GUI Login System 289

Running an XDMCP Server 290

Configuring an XDMCP Server 292

Using X for Remote Access 294

X Client-Server Principles 294

Using Remote X Clients 295

X Accessibility 297

Keyboard and Mouse Accessibility Issues 297

Screen Display Settings 300

Using Additional Assistive Technologies 301

Configuring Localization and Internationalization 302

Setting Your Time Zone 302

Querying and Setting Your Locale 305

Configuring Printing 308

Conceptualizing the Linux Printing Architecture 309

Understanding PostScript and Ghostscript 310

Running a Printing System 311

Configuring CUPS 312

Monitoring and Controlling the Print Queue 318

Summary 322

Exam Essentials 322

Review Questions 324

Chapter 7 Administering the System 329

Managing Users and Groups 330

Understanding Users and Groups 330

Configuring User Accounts 333

Configuring Groups 344

Tuning User and System Environments 348

Using System Log Files 349

Understanding syslogd 350

Setting Logging Options 350

Manually Logging Data 352

Rotating Log Files 353

Reviewing Log File Contents 356

Maintaining the System Time 358

Linux Time Concepts 358

Manually Setting the Time 359

Using NTP 360

Running Jobs in the Future 366

Understanding the Role of cron 367

Creating System cron Jobs 367

Creating User cron Jobs 369

Using anacron 371

Using at 373

Summary 374

Exam Essentials 375

Review Questions 376

Chapter 8 Configuring Basic Networking 381

Understanding TCP/IP Networking 382

Knowing the Basic Functions of Network Hardware 382

Investigating Types of Network Hardware 383

Understanding Network Packets 385

Understanding Network Protocol Stacks 385

Knowing TCP/IP Protocol Types 387

Understanding Network Addressing 389

Using Network Addresses 389

Resolving Hostnames 395

Network Ports 398

Configuring Linux for a Local Network 402

Network Hardware Configuration 402

Configuring with DHCP 402

Configuring with a Static IP Address 403

Configuring Routing 406

Using GUI Configuration Tools 408

Using the ifup and ifdown Commands 408

Configuring Hostnames 409

Diagnosing Network Connections 411

Testing Basic Connectivity 412

Tracing a Route 412

Checking Network Status 413

Examining Raw Network Traffic 414

Using Additional Tools 415

Summary 418

Exam Essentials 418

Review Questions 420

Chapter 9 Writing Scripts, Configuring Email,

and Using Databases 425

Managing the Shell Environment 426

Reviewing Environment Variables 426

Understanding Common Environment Variables 427

Using Aliases 431

Modifying Shell Configuration Files 431

Writing Scripts 433

Beginning a Shell Script 434

Using Commands 435

Using Variables 437

Using Conditional Expressions 440

Using Loops 442

Using Functions 443

Managing Email 445

Understanding Email 445

Choosing Email Software 447

Working with Email 448

Securing Your Email Server 452

Managing Data with SQL 453

Picking a SQL Package 453

Understanding SQL Basics 454

Using MySQL 456

Summary 465

Exam Essentials 465

Review Questions 467

Chapter 10 Securing Your System 473

Administering Network Security 474

Using Super Server Restrictions 475

Disabling Unused Servers 481

Administering Local Security 488

Securing Passwords 488

Limiting root Access 492

Setting Login, Process, and Memory Limits 493

Locating SUID/SGID Files 495

Configuring SSH 497

SSH Basics 497

Setting SSH Options for Your Computer 498

SSH Security Considerations 505

Using GPG 506

Generating Keys 506

Importing Keys 507

Revoking a Key 508

Encrypting and Decrypting Data 508

Signing Messages and Verifying Signatures 509

Summary 510

Exam Essentials 510

Review Questions 512

Appendix A Answers to Review Questions 517

Chapter 1: Exploring Linux Command-Line Tools 518

Chapter 2: Managing Software 521

Chapter 3: Configuring Hardware 524

Chapter 4: Managing Files 528

Chapter 5: Booting Linux and Editing Files 531

Chapter 6: Configuring the X Window System,

Localization, and Printing 534

Chapter 7: Administering the System 538

Chapter 8: Configuring Basic Networking 542

Chapter 9: Writing Scripts, Configuring Email, and

Using Databases 546

Chapter 10: Securing Your System 549

Appendix B About the Additional Study Tools 553

Additional Study Tools 554

Sybex Test Engine 554

Electronic Flashcards 554

PDF of Glossary of Terms 554

Adobe Reader 554

System Requirements 555

Using the Study Tools 555

Troubleshooting 556

Cus tomer Care 556

Index 557