Red Hat RHCSA 9 Cert Guide: EX200

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Learn, prepare, and practice for Red Hat RHCSA 9 (EX200) exam success with this Cert Guide from Pearson IT Certification, a leader in IT Certification learning.

• Master Red Hat RHCSA 9 EX200 exam topics
• Assess your knowledge with chapter-ending quizzes and labs
• Review key concepts with exam-preparation tasks
• Practice with four unique practice tests
• Learn from two full hours of video training from the author's Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course Red Hat RHCSA 9 Cert Guide: EX200 is a comprehensive exam study guide. Leading Linux consultant, author, and instructor Sander van Vugt shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. The material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics.

The book presents you with an organized test-preparation routine through the use of proven series elements and techniques. Exam topic lists make referencing easy, and chapter-ending Exam Preparation Tasks help you drill deep on key concepts you must know thoroughly to pass the exam. Review questions help you assess your knowledge, and a final preparation chapter guides you through tools and resources to help you craft your final study plan.

The companion website also contains two additional practice tests plus two full hours of personal video training from the author's Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course.

Well regarded for its level of detail, assessment features, and challenging review questions and exercises, this study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time, including

• Basic system management: Installation, tools, file management, text files, RHEL9 connections, user/group management, permissions, and network configuration
• Operating running systems: Managing software, processes, storage, and advanced storage; working with Systemd; scheduling tasks; and configuring logging
• Advanced system administration: Managing the kernel and boot procedures, essential troubleshooting, bash shell scripting
• Managing network services: Configuring SSH, firewalls, and time services; managing Apache HTTP services and SE Linux; accessing network storage; and managing containers Companion Website

The website contains two complete practice exams and more than an hour of video training from the author's Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course.

Includes Exclusive Offer for 70% Off the full Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course.

Contenu

Introduction xxx
**Part I Performing Basic System Management Tasks
Chapter 1 Installing Red Hat Enterprise Linux 3
Do I Know This Already? Quiz 3
Foundation Topics 6
Preparing to Install Red Hat Enterprise Linux 6
What Is Red Hat Enterprise Linux 9 Server? 6
Getting the Software 7
Using Red Hat Enterprise Linux 7
Using CentOS Stream 7
Other Distributions 8
Understanding Access to Repositories 8
Setup Requirements 9
Cert Guide Environment Description 9
Performing an Installation 10
Summary 22
Exam Preparation Tasks 23
End-of-Chapter Lab 24
Chapter 2 Using Essential Tools 27
Do I Know This Already? Quiz 27
Foundation Topics 30
Basic Shell Skills 30
Understanding Commands 30
Executing Commands 30
I/O Redirection 32
Using Pipes 34
History 35
Bash Completion 37
Editing Files with vim 37
Understanding the Shell Environment 40
Understanding Variables 40
Recognizing Environment Configuration Files 41
Using /etc/motd and /etc/issue 42
Finding Help 43
Using --help 43
Using man 43
Finding the Right man Page 44
Updating mandb 46
Using info 47
Using /usr/share/doc Documentation Files 48
Summary 49
Exam Preparation Tasks 49
End-of-Chapter Lab 51
Chapter 3 Essential File Management Tools 53
Do I Know This Already? Quiz 53
Foundation Topics 56
Working with the File System Hierarchy 56
Defining the File System Hierarchy 56
Understanding Mounts 57
Managing Files 61
Working with Wildcards 61
Managing and Working with Directories 61
Working with Absolute and Relative Pathnames 62
Listing Files and Directories 64
Copying Files and Directories 64
Moving Files and Directories 65
Deleting Files and Directories 66
Using Links 68
Understanding Hard Links 68
Understanding Symbolic Links 69
Creating Links 69
Removing Links 70
Working with Archives and Compressed Files 71
Managing Archives with tar 72
Creating Archives with tar 72
Monitoring and Extracting tar Files 73
Using Compression 74
Summary 75
Exam Preparation Tasks 76
End-of-Chapter Lab 77
Chapter 4 Working with Text Files 81
Do I Know This Already? Quiz 81
Foundation Topics 84
Using Common Text FileRelated Tools 84
Doing More with less 84
Showing File Contents with cat 85
Displaying the First or Last Lines of a File with head and tail 86
Filtering Specific Columns with cut 87
Sorting File Contents and Output with sort 87
Counting Lines, Words, and Characters with wc 88
A Primer to Using Regular Expressions 89
Using Line Anchors 90
Using Escaping in Regular Expressions 91
Using Wildcards and Multipliers 91
Using Extended Regular Expressions 91
Using grep to Analyze Text 93
Working with Other Useful Text Processing Utilities 94
Summary 96
Exam Preparation Tasks 96
End-of-Chapter Lab 98
Chapter 5 Connecting to Red Hat Enterprise Linux 9 101
Do I Know This Already? Quiz 101
Foundation Topics 104
Working on Local Consoles 104
Logging In to a Local Console 104
Switching Between Terminals in a Graphical Environment 105
Working with Multiple Terminals in a Nongraphical Environment 107
Understanding Pseudo Terminal Devices 108
Booting, Rebooting, and Shutting Down Systems 109
Using SSH and Related Utilities 110
Accessing Remote Systems Using SSH 110
Using Graphical Applications in an SSH Environment 113
Securely Transferring Files Between Systems 114
Using scp to Securely Copy Files 114
Using sftp to Securely Transfer Files 115
Using rsync to Synchronize Files 115
Configuring Key-Based Authentication for SSH 116
Using Passphrases or Not? 116
Summary 117
Exam Preparation Tasks 118
End-of-Chapter Labs 119
Chapter 6 User and Group Management 121
Do I Know This Already? Quiz 121
Foundation Topics 124
Understanding Different User Types 124
Users on Linux 124
Working as Root 124
Using su 125
sudo 126
PolicyKit 127
Creating and Managing User Accounts 129
System Accounts and Normal Accounts 129
Creating Users 132
Modifying the Configuration Files 132
Using useradd 133
Home Directories 133
Default Shell 133
Managing User Properties 134
Configuration Files for User Management Defaults 134
Managing Password Properties 135
Creating a User Environment 135
Creating and Managing Group Accounts 137
Understanding Linux Groups 137
Creating Groups 137
Creating Groups with vigr 137
Using groupadd to Create Groups 138
Managing Group Properties 138
Summary 139
Exam Preparation Tasks 140
End-of-Chapter Labs 141
Chapter 7 Permissions Management 145
Do I Know This Already? Quiz 145
Foundation Topics 148
Managing File Ownership 148
Displaying Ownership 148
Changing User Ownership 149
Changing Group Ownership 150
Understanding Default Ownership 150…