Official Ubuntu Server Book

Ubuntu Server is a complete, free server operating system that just works, with the extra Ubuntu polish, innovation, and simplicity that administrators love. http://www.dropshippers.co.za/

Now, there’s a definitive, authoritative guide to getting up-and-running quickly with the newest, most powerful versions of Ubuntu Server. Written by leading members of the Ubuntu community, The Official Ubuntu Server Book covers all you need to know to make the most of Ubuntu Server, whether you’re a beginner or a battle-hardened senior system administrator. http://www.dropshippers.co.za/

The authors cover Ubuntu Server from start to finish: installation, basic administration and monitoring, security, backup, troubleshooting, system rescue, and much more. They walk through deploying each of the most common server applications, from file and print services to state-of-the-art, cost-saving virtualization. http://www.dropshippers.co.za/

In addition, you’ll learn how to http://www.dropshippers.co.za/

• Make the most of Ubuntu Server’s latest, most powerful technologies
• Discover easy, fast ways to perform key administration tasks
• Automate Ubuntu installs, no matter how many servers you’re installing
• Quickly set up low-cost web servers and email
• Protect your server with Ubuntu’s built-in and optional security tools
• Minimize downtime with fault tolerance and clustering
• Master proven, step-by-step server and network troubleshooting techniques
• Walk through rescuing an Ubuntu server that won’t boot
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Two CDs are included, which contain two versions of Ubuntu Server: Ubuntu 8.04 LTS, which is supported by Canonical for five years, and the brand-new, cutting-edge Ubuntu Server 9.04. http://www.dropshippers.co.za/

Table of Contents

Preface xvii

Acknowledgments xxiii http://www.dropshippers.co.za/

About the Authors xxv

Introduction xxvii http://www.dropshippers.co.za/

Welcome to Ubuntu Server xxvii

Free Software, Open Source, and Linux xxviii http://www.dropshippers.co.za/

A Brief History of the Ubuntu Project xxxii

Ubuntu Promises and Goals xxxix http://www.dropshippers.co.za/

Canonical and the Ubuntu Foundation xliv

History of Ubuntu Server xlvii http://www.dropshippers.co.za/

Simple, Secure, Supported xlix

Chapter 1: Installation 1

Get Ubuntu 2

Boot Screen 3 http://www.dropshippers.co.za/

Disk Partitioning 5

Server Roles 13 http://www.dropshippers.co.za/

Installer Console 15

Reboot the System 16 http://www.dropshippers.co.za/

Chapter 2: Essential System Administration 17

Basic Command-Line Administration 18

Ubuntu Boot Process 24 http://www.dropshippers.co.za/

File System Hierarchy 40

Networking 45 http://www.dropshippers.co.za/

Chapter 3: Package Management 51

Introduction to Package Management 52

Debian Packages 60 http://www.dropshippers.co.za/

Package Management in Ubuntu 63

Making Your Own Packages 77 http://www.dropshippers.co.za/

Chapter 4: Automated Ubuntu Installs 83

Preseeding 84

Kickstart 104 http://www.dropshippers.co.za/

PXE Boot Server Deployment 111

Customize Automated Installs 117 http://www.dropshippers.co.za/

Chapter 5: Guide to Common Ubuntu Servers 125

DNS Server 126

Web Server 135 http://www.dropshippers.co.za/

Mail Server 144

POP/IMAP Server 156 http://www.dropshippers.co.za/

OpenSSH Server 158

DHCP Server 160 http://www.dropshippers.co.za/

Database Server 163

File Server 172 http://www.dropshippers.co.za/

Chapter 6: Security 181

General Security Principles 182

Sudo 183 http://www.dropshippers.co.za/

AppArmor 188

SSH Security 192 http://www.dropshippers.co.za/

Firewalls 196

Intrusion Detection 208 http://www.dropshippers.co.za/

Incident Response 215

Chapter 7: Backups 221

Backup Principles 222

Drive Imaging 224 http://www.dropshippers.co.za/

Database Backups 226

BackupPC 231 http://www.dropshippers.co.za/

Chapter 8: Monitoring 249

Local Monitoring Tools 250

Ganglia 255 http://www.dropshippers.co.za/

Nagios 262

Chapter 9: Virtualization 279

KVM 280

VMware Server 297 http://www.dropshippers.co.za/

Chapter 10: Fault Tolerance 309

Fault Tolerance Principles 310

RAID 311 http://www.dropshippers.co.za/

Ethernet Bonding 338

Clusters 343 http://www.dropshippers.co.za/

Chapter 11: Troubleshooting 365

General Troubleshooting Philosophy 366

Localhost Troubleshooting 369 http://www.dropshippers.co.za/

Network Troubleshooting 381

Hardware Troubleshooting 390 http://www.dropshippers.co.za/

Chapter 12: Rescue and Recovery 395

Ubuntu Recovery Mode 396

Ubuntu Server Recovery CD 401 http://www.dropshippers.co.za/

Ubuntu Desktop Live CD 406

Chapter 13: Help and Resources 415

Paid Support from Canonical 416

Forums 417 http://www.dropshippers.co.za/

Internet Relay Chat 418

Mailing Lists 421 http://www.dropshippers.co.za/

Online Documentation 422

Localhost Documentation 423 http://www.dropshippers.co.za/

Local Community Teams 424

Other Languages 425 http://www.dropshippers.co.za/

Tech Answers System (Launchpad) 425

Bug Reporting 425 http://www.dropshippers.co.za/

Summary 427

Index 429