The Complete Guide To Linux System Administration

by Wells, Nick

• ISBN13: 9780619216160
• ISBN10: 0619216166
• Edition: 1st
• Format: Paperback
• Copyright: 2004-12-02
• Publisher: Cengage Learning

Summary

Prepares users for the Red Hat Certified Technician (RHCT) Certification, Linux Professional Institute (LPI) Certification, and SAIR/GNU Linux Certified Administrator (LCA) Certification.

Table of Contents

Introduction	xv
Introducing Linux	1	(56)
A Brief History	2	(8)
Understanding Operating Systems	2	(1)
Operating System Functions	3	(1)
The UNIX Operating System	4	(1)
The Free Software Foundation and the GNU Project	5	(1)
Linux Arrives	6	(3)
Motivating Free Software Developers	9	(1)
The Strengths of Linux	10	(1)
Linux in the Market	10	(7)
Linux Distributions	11	(2)
Red Hat Software	13	(1)
Hardware Requirements	14	(1)
Version Numbering	14	(2)
Linux Certification	16	(1)
The Work of a System Administrator	17	(6)
Careers in Linux	17	(1)
The Duties of a System Administrator	18	(3)
Ethics, Privacy, and the Law	21	(2)
Starting to Use Linux	23	(2)
Logging In	23	(1)
Graphical Environments	24	(1)
Opening a Terminal Window	25	(1)
Exploring the File System	25	(13)
File System Concepts	26	(2)
Managing Files with Graphical Utilities	28	(4)
Working at a Command Line	32	(6)
Finding Command Help	38	(3)
Reading Linux Documentation	38	(2)
Linux Command Information	40	(1)
Chapter Summary	41	(2)
Command Summary	43	(1)
Key Terms	43	(4)
Review Questions	47	(4)
Hands-On Projects	51	(4)
Case Projects	55	(2)
Exploring the Desktop	57	(52)
Linux Graphical Desktops	58	(11)
Understanding the X Window System	58	(1)
How the X Window System Functions	59	(1)
Components of the X Window System	59	(3)
Starting X	62	(1)
Desktop Interfaces	63	(2)
The Graphical Login Screen	65	(1)
Working with Graphical Windows	66	(3)
Configuring GNOME and KDE	69	(12)
Switching Between Desktop Interfaces	69	(1)
Saving Your Configuration Between Logins	70	(1)
Configuring the Graphical Login Screen	70	(2)
The Panel	72	(4)
Configuring Other GNOME Features	76	(5)
Core Graphical Utilities	81	(4)
Configuring the Nautilus File Manager	81	(3)
Configuring the Use of Other Utilities	84	(1)
Popular Graphical Programs	85	(11)
OpenOffice.org	85	(5)
Using E-mail Clients	90	(6)
Chapter Summary	96	(2)
Command Summary	98	(1)
Key Terms	98	(1)
Review Questions	98	(4)
Hands-on Projects	102	(4)
Case Projects	106	(3)
Using the Shell	109	(46)
Exploring the Bash Shell	110	(14)
The Shell Prompt	110	(1)
The Functions of a Shell	111	(1)
Different Types of Shells	112	(2)
Entering Commands	114	(4)
The Shell Start-up Process	118	(1)
Using Aliases	119	(2)
Command-line Expansion	121	(3)
Shell Variables	124	(4)
Data Redirection	128	(3)
Editing Text with vi	131	(5)
Printing from the Command Line	136	(5)
Setting up a Printer	136	(3)
Printing from a Command Line	139	(2)
Chapter Summary	141	(1)
Command Summary	142	(1)
Key Terms	142	(2)
Review Questions	144	(4)
Hands-On Projects	148	(5)
Case Projects	153	(2)
Understanding Users and File Systems	155	(42)
Linux Users and Groups	156	(10)
Types of User Accounts	156	(2)
Linux Groups	158	(1)
User and Group Files	159	(3)
Shadow Passwords	162	(1)
Changing User Passwords	163	(2)
User Information Commands	165	(1)
File Permissions	166	(5)
Changing Ownership	167	(2)
Changing File Permissions	169	(1)
Default File Permissions	170	(1)
Introducing the File System	171	(8)
Partitions and File Systems	171	(1)
Inodes and Links	172	(3)
File Types	175	(1)
Accessing Removable Media	176	(2)
Using find	178	(1)
Managing File Archives	179	(3)
Compressing Files	179	(1)
Using tar and cpio for Archiving Files	180	(2)
Chapter Summary	182	(2)
Command Summary	184	(1)
Key Terms	185	(2)
Review Questions	187	(3)
Hands-On Projects	190	(5)
Case Projects	195	(2)
Understanding Text Processing	197	(38)
Regular Expressions	198	(3)
Manipulating Files	201	(8)
Searching for Patterns with grep	201	(2)
Examining File Contents	203	(2)
Manipulating Text Files	205	(4)
Using sed and awk	209	(5)
Filtering and Editing Text with sed	209	(2)
Formatting with awk	211	(3)
More Advanced Text Editing	214	(7)
File Operations in vi	214	(1)
Screen Repositioning	215	(1)
More Line-editing Commands	216	(2)
Setting vi Options	218	(1)
Summary of vi Commands	219	(2)
Chapter Summary	221	(1)
Command Summary	222	(1)
Key Terms	223	(1)
Review Questions	223	(4)
Hands-On Projects	227	(6)
Case Projects	233	(2)
Managing Processes	235	(54)
Defining Processes	236	(2)
The Linux Multitasking Model	236	(1)
Creating Processes	236	(1)
Process States	237	(1)
Swap Space	237	(1)
Managing Linux Processes	238	(20)
Starting Processes from the Shell	238	(3)
Learning about Processes via the Command Line	241	(6)
Controlling Processes	247	(5)
Using Graphical Process Management Tools	252	(6)
Managing Memory	258	(5)
Understanding Shared Libraries	258	(2)
Understanding Paged Memory	260	(1)
Tracking Memory Usage	260	(2)
Viewing Virtual Memory Information	262	(1)
Scheduling Processes	263	(11)
Automating One-time Tasks	264	(4)
Automating Recurring Tasks	268	(4)
Managing Automated Tasks	272	(2)
Controlling Access to at and crontab	274	(1)
Chapter Summary	275	(1)
Command Summary	276	(1)
Key Terms	277	(2)
Review Questions	279	(3)
Hands-On Projects	282	(5)
Case Projects	287	(2)
Using Network Clients	289	(38)
Remote Login	290	(8)
The Telnet Remote Login Utility	291	(2)
Using r-Utilities for Remote Execution	293	(2)
Secure Shell (SSH)	295	(3)
Data Services	298	(9)
Accessing theWeb	298	(5)
Accessing FTP Servers	303	(4)
Networking and Network Diagnostic Tools	307	(7)
Introduction to Networking	307	(2)
Using ping for System Testing	309	(3)
Using traceroute to Examine Routing Patterns	312	(2)
Chapter Summary	314	(1)
Command Summary	315	(1)
Key Terms	316	(2)
Review Questions	318	(4)
Hands-on Projects	322	(3)
Case Projects	325	(2)
Installing Linux	327	(74)
Reviewing Your Computer's Hardware	328	(20)
Understanding Computer Hardware	328	(6)
Supported Linux Hardware	334	(2)
Understanding Networking	336	(2)
Creating a Shared System	338	(3)
Graphical Systems	341	(1)
Creating a System Inventory	341	(7)
Configuring Disk Space	348	(9)
Booting the System	349	(1)
Hard Disk Geometry	350	(2)
Swap Partitions	352	(1)
Preparing a Shared Hard Disk	352	(5)
Installing Linux	357	(10)
Linux Distributions	357	(1)
An Overview of Linux Installation	358	(1)
Installation Source Options	359	(1)
Options for Starting the Installation	360	(1)
The Installation Process	361	(6)
Kickstart Installations	367	(4)
Reviewing the Kickstart Configuration File	368	(2)
Using the Graphical Configuration Tool	370	(1)
Chapter Summary	371	(1)
Command Summary	372	(1)
Key Terms	373	(2)
Review Questions	375	(5)
Hands-On Projects	380	(18)
Case Projects	398	(3)
Understanding System Initialization	401	(32)
Hardware Initialization	402	(6)
The Boot Loader	403	(3)
Starting the Kernel	406	(1)
Using Boot Parameters	406	(2)
Configuring Boot Loaders	408	(4)
Using LILO	408	(2)
Using GRUB	410	(2)
init and its Scripts	412	(4)
Understanding Run Levels	412	(2)
Understanding rc Scripts	414	(2)
Controlling Services	416	(4)
Managing Services	416	(1)
Managing Services Graphically	417	(1)
Configuring System Services	418	(1)
Shutting Down Linux	419	(1)
Chapter Summary	420	(2)
Command Summary	422	(1)
Key Terms	422	(1)
Review Questions	423	(4)
Hands-On Projects	427	(3)
Case Projects	430	(3)
Managing Software Packages and File Systems	433	(44)
Managing Packages	434	(5)
Managing Packages Graphically	434	(2)
Using rpm to Manage Software Packages	436	(3)
Updating the System Automatically	439	(4)
Understanding the File System	443	(20)
Reviewing File System Types	443	(3)
Checking File System Status	446	(3)
File System Attributes	449	(2)
Checking File Systems	451	(1)
Creating New File Systems	452	(1)
Using the fdisk Utility	452	(3)
Formatting File Systems	455	(2)
Mounting New File Systems	457	(1)
Using Networked File Systems	458	(1)
Automating File System Mounting	458	(3)
Using the autofs Mounting Service	461	(1)
Managing Swap Space	462	(1)
Setting Quotas on Disk Usage	462	(1)
Chapter Summary	463	(2)
Command Summary	465	(2)
Key Terms	467	(1)
Review Questions	468	(4)
Hands-On Projects	472	(3)
Case Projects	475	(2)
Managing Users	477	(44)
Creating and Managing User Accounts	478	(16)
Managing User Accounts Graphically	478	(8)
Creating New Users at the Command Line	486	(3)
Creating New Groups	489	(1)
Modifying User and Group Accounts at the Command Line	489	(3)
Automating Home Directory Creation	492	(1)
Disabling User Accounts	493	(1)
Complex File Permissions	494	(5)
User Security Issues	499	(10)
Communicating with Users	499	(1)
Granting Limited Root Access	500	(2)
Using Pluggable Authentication Modules	502	(5)
Using Network Information Service	507	(2)
Chapter Summary	509	(1)
Command Summary	510	(1)
Key Terms	511	(1)
Review Questions	512	(3)
Hands-On Projects	515	(5)
Case Projects	520	(1)
Configuring Networks	521	(54)
Configuring Linux Networking	522	(16)
Understanding Network Devices in Linux	522	(1)
Configuring Networking with Command-line Utilities	523	(5)
Configuring Networking Using Graphical Tools	528	(5)
Configuring the DNS Resolver	533	(2)
Dynamic Routing with Routing Protocols	535	(3)
Configuring a DHCP Server	538	(1)
Networked Printing Services	539	(18)
Using Traditional Linux Printing: LPRng	539	(6)
Printing Remotely Using LPRng	545	(2)
Understanding the Common UNIX Printing System (CUPS)	547	(5)
Managing Printing	552	(5)
Chapter Summary	557	(2)
Command Summary	559	(1)
Key Terms	560	(2)
Review Questions	562	(5)
Hands-On Projects	567	(7)
Case Projects	574	(1)
System and Kernel Management	575	(60)
Backing Up a Linux System	576	(19)
Designing a Backup Strategy	576	(3)
A Linux Backup Strategy	579	(4)
Hardware and Software Issues	583	(2)
Using Linux Backup Utilities	585	(2)
Understanding Redundant Disk Systems and RAID	587	(6)
Understanding Logical Volume Management	593	(2)
System Logs	595	(11)
The syslogd and klogd Daemons	597	(1)
Configuring the System Log	597	(4)
Configuration File Syntax	601	(2)
Using the logger Utility	603	(1)
Analyzing Log Files	604	(1)
Rotating Log Files	605	(1)
Exploring Kernel Components	606	(6)
Timekeeping in Linux	606	(1)
Kernel Management Using the /proc File System	607	(2)
Using Kernel Modules	609	(3)
Configuring and Upgrading Kernel Components	612	(6)
Installing Kernel Source Code	613	(1)
Configuring Kernel Features	614	(3)
Compiling a New Kernel	617	(1)
Chapter Summary	618	(2)
Command Summary	620	(2)
Key Terms	622	(2)
Review Questions	624	(5)
Hands-On Projects	629	(5)
Case Projects	634	(1)
Writing Shell Scripts	635	(42)
Scripting Basics	636	(5)
Interpreting and Compiling Programs	636	(1)
Understanding Programming Concepts	637	(1)
Components of a Shell Script	638	(3)
Input and Output	641	(5)
UsingVariables in Scripts	643	(3)
Conditional and Looping Structures	646	(9)
Using if Statements	647	(4)
Adding Loops to a Script	651	(3)
Using Functions in a Script	654	(1)
Shell Script Debugging	655	(2)
Using Shell Tracing	656	(1)
Debugging within a Script	657	(1)
Other Programming Methods	657	(6)
Other Scripting Languages	658	(2)
Compiled Languages	660	(3)
Chapter Summary	663	(1)
Command Summary	664	(1)
Key Terms	665	(2)
Review Questions	667	(4)
Hands-On Projects	671	(5)
Case Projects	676	(1)
Advanced Topics and Troubleshooting	677	(80)
X Window System Advanced Configuration	678	(14)
Configuring X	678	(2)
Using X Window System Start-up Scripts	680	(3)
Adjusting the Display of Graphical Applications	683	(2)
Using a Graphical Login Screen	685	(2)
Displaying X Clients Remotely	687	(5)
Security Issues	692	(7)
The Structure of a Secure Network	692	(1)
Types of Security Attacks	693	(1)
Security Tools	694	(4)
Viruses and Worms	698	(1)
Security Organizations	698	(1)
Using Network Services	699	(26)
Using NetFilter for Firewalls	699	(6)
Setting up a DNS Name Server	705	(3)
File Sharing with NFS	708	(3)
Setting up a Samba Server	711	(2)
Creating a Proxy Server with Squid	713	(2)
Creating a Linux Web Server with Apache	715	(3)
Configuring a Basic E-mail Server	718	(3)
Using Superservers for Network Services	721	(4)
Troubleshooting and Recovery	725	(6)
Troubleshooting Linux Installation	727	(2)
Diagnosing Device Status	729	(1)
Troubleshooting Network Connections	729	(1)
Creating Rescue Disks	730	(1)
Chapter Summary	731	(2)
Command Summary	733	(3)
Key Terms	736	(4)
Review Questions	740	(4)
Hands-On Projects	744	(10)
Case Projects	754	(3)
Appendix A Red Hat Certified Technician Objectives	757	(14)
Objectives Based on Course RH 033---Red Hat Linux Essentials	758	(6)
Unit 1: Overview	758	(1)
Unit 2: Command-line File System Browsing	758	(1)
Unit 3: GNOME and KDE Desktops	759	(1)
Unit 4: The Bash Shell	759	(1)
Unit 5: Users, Groups, and Permissions	759	(1)
Unit 6: vi and vim Editor Basics and Printing	759	(1)
Unit 7: The Linux File System	760	(1)
Unit 8: Configuring GNOME, KDE, and X-based Tools	760	(1)
Unit 9: The Bash Shell and Configuration	761	(1)
Unit 10: Advanced Topics in Users, Groups, and Permissions	761	(1)
Unit 11: Advanced Uses of the vi and vim Editors	762	(1)
Unit 12: Standard I/O and Pipes	762	(1)
Unit 13: Introduction to String Processing	762	(1)
Unit 14: String Processing with Regular Expressions	762	(1)
Unit 15: Introduction to Processes	763	(1)
Unit 16: Bash Shell Scripting	763	(1)
Unit 17: Basic Networking Clients	763	(1)
Unit 18: Programming and Administration	764	(1)
Objectives Based on Course RH 133---Red Hat Linux System Administration	764	(7)
Unit 1: Hardware, Device Configuration, and Installation	764	(1)
Unit 2: Linux File System Management	765	(1)
Unit 3: System Initialization and Services	766	(1)
Unit 4: User Administration	766	(1)
Unit 5: Network Configuration	767	(1)
Unit 6: System Administration Tools	767	(1)
Unit 7: RPM, Boot Loaders, and Kickstart	768	(1)
Unit 8: Kernel Services and Configuration	769	(1)
Unit 9: The X Window System	769	(1)
Unit 10: Troubleshooting	769	(2)
Appendix B Linux Professional Institute LPI Certification---Level 1 Objectives	771	(22)
Objectives for Exam 101	772	(10)
Topic 101 Hardware and Architecture	772	(2)
Topic 102 Linux Installation and Package Management	774	(2)
Topic 103 GNU and UNIX Commands	776	(3)
Topic 104 Devices, Linux File Systems, and File System Hierarchy Standard	779	(2)
Topic 110 The X Window System	781	(1)
Objectives for Exam 102	782	(11)
Topic 105 Kernel	782	(1)
Topic 106 Boot, Initialization, Shutdown, and Run Levels	783	(1)
Topic 107 Printing	784	(1)
Topic 108 Documentation	785	(1)
Topic 109 Shells, Scripting, Programming, and Compiling	786	(1)
Topic 111 Administrative Tasks	786	(2)
Topic 112 Networking Fundamentals	788	(2)
Topic 113 Networking Services	790	(2)
Topic 114 Security	792	(1)
Appendix C SAIR/GNU Certified Linux Administrator (LCA) Level 1 Objectives	793	(28)
Course 3X0-101---Linux Installation and Configuration	794	(6)
1.1 Theory of Operation	794	(2)
1.2 Base System	796	(1)
1.3 Shells and Commands	797	(1)
1.4 System Services	798	(1)
1.5 Applications	799	(1)
1.6 Troubleshooting	800	(1)
Course 3X0--102: Linux System Administration	800	(4)
2.1 Theory of Operation	800	(1)
2.2 Base System	801	(1)
2.3 Shells and Commands	802	(1)
2.4 System Services	803	(1)
2.5 Applications	803	(1)
2.6 Troubleshooting	804	(1)
Course 3X0--103 Linux Networking	804	(6)
3.1 Theory of Operation	805	(1)
3.2 Base System	806	(1)
3.3 Shells and Commands	807	(1)
3.4 System Services	808	(1)
3.5 Applications	809	(1)
3.6 Troubleshooting	809	(1)
Course 3X0--104 Linux Security, Ethics, and Privacy	810	(5)
4.1 Theory of Operation	810	(1)
4.2 Base System	811	(1)
4.3 Shells and Commands	811	(1)
4.4 System Services	812	(1)
4.5 Applications	812	(1)
4.6 Troubleshooting	813	(2)
Appendix D Linux+ Certification Objectives	815	(6)
Domain 1.0 Installation	816	(1)
Domain 2.0 Management	816	(2)
Domain 3.0 Configuration	818	(1)
Domain 4.0 Security	819	(1)
Domain 5.0 Documentation	819	(1)
Domain 6.0 Hardware	820	(1)
Glossary	821	(22)
Index	843