Red Hat RHCSA 8 Cert Guide: EX200, 2nd Edition

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Features

Complete and concise: get all the knowledge you need, without wading through thousands of pages! Authoritative coverage by one of the world's leading Red Hat experts, consultants, and instructors Fully reflects the updated RHCSA 8 EX200 exam, covering container management, system configuration and management, operations, advanced administration, network services, security, and more Test-taking strategies, tips, notes, and two full sample exams delivered by Pearsons advanced test engine 

Description

Learn, prepare, and practice for Red Hat RHCSA 8 (EX200) exam success with this Cert Guide from Pearson IT Certification, a leader in IT Certification learning.

* Master Red Hat RHCSA 8 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 authors Red Hat Certified System Administrator (RHCSA) Complete Video Course, 3rd Edition. 

Red Hat RHCSA 8 Cert Guide 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. 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. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly. 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 authors Red Hat Certified System Administrator (RHCSA) Complete Video Course, 3rd Edition.

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, RHEL8 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

Sample Content

Table of Contents

Introduction xxviiiPart I: Performing Basic System Management TasksChapter 1 Installing Red Hat Enterprise Linux 3Do I Know This Already? Quiz 3Foundation Topics 6Preparing to Install Red Hat Enterprise Linux 6    What Is Red Hat Enterprise Linux 8 Server? 6    Getting the Software 7        Using Red Hat Enterprise Linux 7        Using CentOS 7        Other Distributions 8    Understanding Access to Repositories 8    Setup Requirements 9    Cert Guide Environment Description 9Performing a Manual Installation 10Summary 24Exam Preparation Tasks 25End-of-Chapter Lab 26Chapter 2 Using Essential Tools 29Do I Know This Already? Quiz 29Foundation Topics 32Basic Shell Skills 32    Understanding Commands 32    Executing Commands 32    I/O Redirection 34    Using Pipes 36    History 37    Bash Completion 39Editing Files with vim 39Understanding the Shell Environment 42    Understanding Variables 42    Recognizing Environment Configuration Files 43    Using /etc/motd and /etc/issue 43    Finding Help 44    Using --help 44    Using man 45    Finding the Right man Page 46    Updating mandb 47    Using info 48    Using /usr/share/doc Documentation Files 49Summary 50Exam Preparation Tasks 50End-of-Chapter Lab 51Chapter 3 Essential File Management Tools 53Do I Know This Already? Quiz 53Foundation Topics 56Working with the File System Hierarchy 56    Defining the File System Hierarchy 56    Understanding Mounts 57Managing Files 61    Working with Wildcards 62    Managing and Working with Directories 62    Working with Absolute and Relative Pathnames 63    Listing Files and Directories 64    Copying Files and Directories 65    Moving Files and Directories 66    Deleting Files and Directories 66Using Links 68    Understanding Hard Links 68    Understanding Symbolic Links 69    Creating Links 69    Removing Links 70Working with Archives and Compressed Files 71    Managing Archives with tar 72        Creating Archives with tar 72        Monitoring and Extracting tar Files 73    Using Compression 74Summary 75Exam Preparation Tasks 75End-of-Chapter Lab 77Chapter 4 Working with Text Files 81Do I Know This Already? Quiz 81Foundation Topics 84Using 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 88A Primer to Using Regular Expressions 89    Using Line Anchors 90    Using Escaping in Regular Expressions 90    Using Wildcards and Multipliers 91Using grep to Analyze Text 92Working with Other Useful Text Processing Utilities 93Summary 94Exam Preparation Tasks 95End-of-Chapter Lab 96Chapter 5 Connecting to Red Hat Enterprise Linux 8 99Do I Know This Already? Quiz 99Foundation Topics 102Working on Local Consoles 102    Logging In to a Local Console 102    Switching Between Terminals in a Graphical Environment 103    Working with Multiple Terminals in a Nongraphical Environment 104    Understanding Pseudo Terminal Devices 106    Booting, Rebooting, and Shutting Down Systems 106Using SSH and Related Utilities 108    Accessing Remote Systems Using SSH 108    Using Graphical Applications in an SSH Environment 111    Securely Transferring Files Between Systems 111        Using scp to Securely Copy Files 112        Using sftp to Securely Transfer Files 112        Using rsync to Synchronize Files 113    Configuring Key-Based Authentication for SSH 114    Using Passphrases or Not? 114    Using the screen Command 115Summary 117Exam Preparation Tasks 117End-of-Chapter Labs 118Chapter 6 User and Group Management 121Do I Know This Already? Quiz 121Foundation Topics 124Understanding Different User Types 124    Users on Linux 124    Working as Root 124    Using su 125    sudo 126    PolicyKit 126Managing User Accounts 127    System Accounts and Normal Accounts 127    Creating Users 131        Modifying the Configuration Files 131        Using useradd 131        Home Directories 132    Managing User Properties 132    Configuration Files for User Management Defaults 132    Managing Password Properties 133    Creating a User Environment 134Creating and Managing Group Accounts 135    Understanding Linux Groups 135    Creating Groups 136        Creating Groups with vigr 136        Using groupadd to Create Groups 137    Managing Group Properties 137Summary 138Exam Preparation Tasks 138End-of-Chapter Lab 140Chapter 7 Permissions Management 143Do I Know This Already? Quiz 143Foundation Topics 146Managing File Ownership 146    Displaying Ownership 146    Changing User Ownership 147    Changing Group Ownership 148    Understanding Default Ownership 148Managing Basic Permissions 149    Understanding Read, Write, and Execute Permissions 149    Applying Read, Write, and Execute Permissions 150Managing Advanced Permissions 152    Understanding Advanced Permissions 152    Applying Advanced Permissions 155Managing ACLs 156    Understanding ACLs 156    Preparing Your File System for ACLs 157    Changing and Viewing ACL Settings with setfacl and getfacl 157    Working with Default ACLs 159Setting Default Permissions with umask 160Working with User-Extended Attributes 162Summary 163Exam Preparation Tasks 163End-of-Chapter Lab 165Chapter 8 Configuring Networking 167Do I Know This Already? Quiz 167Foundation Topics 170Networking Fundamentals 170    IP Addresses 170    IPv6 Addresses 171    Network Masks 171    Binary Notation 172    MAC Addresses 173    Protocol and Ports 173Managing Network Addresses and Interfaces 174Validating Network Configuration 175    Validating Network Address Configuration 175    Validating Routing 178    Validating the Availability of Ports and Services 178Configuring Network Configuration with nmtui and nmcli 180    Required Permissions to Change Network Configuration 180    Configuring the Network with nmcli 181    Configuring the Network with nmtui 187    Working on Network Configuration Files 189Setting Up Hostname and Name Resolution 190    Hostnames 190    DNS Name Resolution 192Summary 194Exam Preparation Tasks 194End-of-Chapter Lab 195Part II: Operating Running SystemsChapter 9 Managing Software 197Do I Know This Already? Quiz 197Foundation Topics 200Managing Software Packages with yum 200    Understanding the Role of Repositories 200    Registering Red Hat Enterprise Linux for Support 201    Managing Subscriptions 202    Specifying Which Repository to Use 203    Understanding Repository Security 206    Creating Your Own Repository 208Using yum 209    Using yum to Find Software Packages 210    Getting More Information About Packages 211    Installing and Removing Software Packages 212    Showing Lists of Packages 214        Updating Packages 215        Working with yum Package Groups 216        Using yum History 218Managing Package Module Streams 220    Understanding Modules 220    Managing Modules 221Managing Software Packages with rpm 225    Understanding RPM Filenames 226    Querying the RPM Database 226    Querying RPM Package Files 227    Using repoquery 228Summary 229Exam Preparation Tasks 229End-of-Chapter Labs 231Chapter 10 Managing Processes 233Do I Know This Already? Quiz 233Foundation Topics 236Introducing Process Management 236Managing Shell Jobs 236    Running Jobs in the Foreground and Background 236    Managing Shell Jobs 237    Managing Parent-Child Relations 239Using Common Command-Line Tools for Process Management 239    Understanding Processes and Threads 239    Using ps to Get Process Information 240    Adjusting Process Priority with nice 242    Sending Signals to Processes with kill, killall, and pkill 244Using top to Manage Processes 246Using tuned to Optimize Performance 248Summary 249Exam Preparation Tasks 249End-of-Chapter Lab 251Chapter 11 Working with Systemd 253Do I Know This Already? Quiz 253Foundation Topics 256Understanding Systemd 256    Understanding Systemd Unit Locations 256    Understanding Systemd Service Units 257    Understanding Systemd Mount Units 258    Understanding Systemd Socket Units 259    Understanding Systemd Target Units 259Managing Units Through Systemd 261    Managing Dependencies 263    Managing Unit Options 265Summary 266Exam Preparation Tasks 267End-of-Chapter Lab 268Chapter 12 Scheduling Tasks 271Do I Know This Already? Quiz 271Foundation Topics 274Configuring cron to Automate Recurring Tasks 274    Managing the crond Service 274    Understanding cron Timing 276    Managing cron Configuration Files 276    Understanding the Purpose of anacron 278    Managing cron Security 280Configuring at to Schedule Future Tasks 281Summary 282Exam Preparation Tasks 282End-of-Chapter Lab 283Chapter 13 Configuring Logging 285Do I Know This Already? Quiz 285Foundation Topics 288Understanding System Logging 288    Understanding the Role of rsyslogd and journald 288    Reading Log Files 290    Understanding Log File Contents 290    Live Log File Monitoring 292    Using logger 292Configuring rsyslogd 293    Understanding rsyslogd Configuration Files 293    Understanding rsyslog.conf Sections 293    Understanding Facilities, Priorities, and Log Destinations 294Rotating Log Files 297Working with journald 299    Using journalctl to Find Events 299    Preserving the Systemd Journal 302Summary 304Exam Preparation Tasks 304End-of-Chapter Lab 306Chapter 14 Managing Storage 309Do I Know This Already? Quiz 309Foundation Topics 312Understanding MBR and GPT Partitions 312    Understanding the MBR Partitioning Scheme 312    Understanding the Need for GPT Partitioning 313    Understanding Storage Measurement Units 314Managing Partitions and File Systems 314    Creating MBR Partitions with fdisk 315    Using Extended and Logical Partitions on MBR 319    Creating GPT Partitions with gdisk 320    Creating GPT Partitions with parted 324    Creating File Systems 325    Changing File System Properties 327        Managing Ext4 File System Properties 327        Managing XFS File System Properties 329    Adding Swap Partitions 329    Adding Swap Files 330Mounting File Systems 330    Manually Mounting File Systems 331    Using Device Names, UUIDs, or Disk Labels 331    Automating File System Mounts Through /etc/fstab 332Summary 335Exam Preparation Tasks 335End-of-Chapter Lab 337Chapter 15 Managing Advanced Storage 339Do I Know This Already? Quiz 339Foundation Topics 342Understanding LVM 342    LVM Architecture 342    LVM Features 343Creating LVM Logical Volumes 344    Creating the Physical Volumes 346    Creating the Volume Groups 349    Creating the Logical Volumes and File Systems 351    Understanding LVM Device Naming 351Resizing LVM Logical Volumes 353    Resizing Volume Groups 353    Resizing Logical Volumes and File Systems 354Configuring Stratis 356    Understanding Stratis Architecture 356    Creating Stratis Storage 357    Managing Stratis 358Configuring VDO 359    Understanding VDO 359    Setting Up VDO 360Summary 362Exam Preparation Tasks 362End-of-Chapter Labs 364Part III: Performing Advanced System Administration TasksChapter 16 Basic Kernel Management 367Do I Know This Already? Quiz 367Foundation Topics 370Understanding the Role of the Linux Kernel 370    Understanding the Use of Kernel Threads and Drivers 370    Analyzing What the Kernel Is Doing 371Working with Kernel Modules 373    Understanding Hardware Initialization 374    Managing Kernel Modules 376    Checking Driver Availability for Hardware Devices 379    Managing Kernel Module Parameters 380Upgrading the Linux Kernel 381Summary 381Exam Preparation Tasks 381End-of-Chapter Lab 383Chapter 17 Managing and Understanding the Boot Procedure 385Do I Know This Already? Quiz 385Foundation Topics 388Managing Systemd Targets 388    Understanding Systemd Targets 388        Working with Targets 388        Understanding Target Units 389        Understanding Wants 390        Managing Systemd Targets 390        Isolating Targets 391        Setting the Default Target 393Working with GRUB 2 394    Understanding GRUB 2 394    Understanding GRUB 2 Configuration Files 395    Modifying Default GRUB 2 Boot Options 395Summary 396Exam Preparation Tasks 397End-of-Chapter Labs 398Chapter 18 Essential Troubleshooting Skills 401Do I Know This Already? Quiz 401Foundation Topics 404Understanding the RHEL 8 Boot Procedure 404Passing Kernel Boot Arguments 406    Accessing the Boot Prompt 406    Starting a Troubleshooting Target 407Using a Rescue Disk 408    Restoring System Access Using a Rescue Disk 409    Reinstalling GRUB Using a Rescue Disk 411    Re-creating the Initramfs Using a Rescue Disk 411Fixing Common Issues 413    Reinstalling GRUB 2 413    Fixing the Initramfs 414    Recovering from File System Issues 414    Resetting the Root Password 416Recovering Access to a Virtual Machine 416Summary 418Exam Preparation Tasks 418End-of-Chapter Lab 420Chapter 19 An Introduction to Bash Shell Scripting 423Do I Know This Already? Quiz 423Foundation Topics 426Understanding Shell Scripting Core Elements 426Using Variables and Input 428    Using Positional Parameters 428    Working with Variables 430Using Conditional Loops 432    Working with if then else 432    Using || and && 433    Applying for 434    Understanding while and until 435    Understanding case 436    Bash Shell Script Debugging 438Summary 438Exam Preparation Tasks 438End-of-Chapter Lab 440Part IV: Managing Network ServicesChapter 20 Configuring SSH 443Do I Know This Already? Quiz 443Foundation Topics 446Hardening the SSH Server 446    Limiting Root Access 446    Configuring Alternative Ports 447    Modifying SELinux to Allow for Port Changes 447    Limiting User Access 448Using Other Useful sshd Options 449    Session Options 450    Connection Keepalive Options 450Configuring Key-Based Authentication with Passphrases 451Summary 452Exam Preparation Tasks 452End-of-Chapter Lab 454Chapter 21 Managing Apache HTTP Services 457Do I Know This Already? Quiz 457Foundation Topics 460Configuring a Basic Apache Server 460    Installing the Required Software 460    Identifying the Main Configuration File 460    Creating Web Server Content 463Understanding Apache Configuration Files 464Creating Apache Virtual Hosts 465Summary 468Exam Preparation Tasks 468End-of-Chapter Lab 469Chapter 22 Managing SELinux 471Do I Know This Already? Quiz 472Foundation Topics 475Understanding SELinux Working and Modes 475Understanding Context Settings and the Policy 479    Monitoring Current Context Labels 479    Setting Context Types 481    Finding the Context Type You Need 484Restoring Default File Contexts 485Using Boolean Settings to Modify SELinux Settings 487Diagnosing and Addressing SELinux Policy Violations 488    Making SELinux Analyzing Easier 490    Preparing for SELinux Coverage on the Exam 492Summary 492Exam Preparation Tasks 492End-of-Chapter Lab 494Chapter 23 Configuring a Firewall 497Do I Know This Already? Quiz 497Foundation Topics 500Understanding Linux Firewalling 500    Understanding Previous Solutions 500    Understanding Firewalld 500    Understanding Firewalld Zones 501    Understanding Firewalld Services 502Working with Firewalld 503Summary 506Exam Preparation Tasks 506End-of-Chapter Lab 508Chapter 24 Accessing Network Storage 511Do I Know This Already? Quiz 511Foundation Topics 514Using NFS Services 514    Understanding NFS Security 514    RHEL 8 NFS Versions 514    Setting Up NFS 515    Mounting the NFS Share 516Using CIFS Services 516    Discovering CIFS Shares 517    Mounting Samba Shares 518    Authenticating to Samba Shares 518    Configuring a Samba Server 518Mounting Remote File Systems Through fstab 520    Mounting NFS Shares Through fstab 520    Mounting Samba Shares Through fstab 521Using Automount to Mount Remote File Systems 521    Understanding Automount 521    Defining Mounts in Automount 522    Configuring Automount for NFS 522    Using Wildcards in Automount 523Summary 524Exam Preparation Tasks 524End-of-Chapter Lab 525Chapter 25 Configuring Time Services 527Do I Know This Already? Quiz 527Foundation Topics 530Understanding Local Time 530Using Network Time Protocol 531Managing Time on Red Hat Enterprise Linux 531    Using date 532    Using hwclock 532    Using timedatectl 533    Managing Time Zone Settings 535    Configuring Time Service Clients 537Summary 538Exam Preparation Tasks 539End-of-Chapter Lab 540Chapter 26 Managing Containers 543Do I Know This Already Quiz 543Foundation Topics 546Understanding Containers 546    Container Host Requirements 546    Containers on RHEL 8 548    Container Orchestration 548Running a Container 549Working with Container Images 552    Using Registries 553    Finding Images 555    Inspecting Images 557    Performing Image Housekeeping 559Managing Containers 560    Managing Container Status 560    Running Commands in a Container 561    Managing Container Ports 563    Managing Container Environment Variables 564Managing Container Storage 565Running Containers as Systemd Services 566Exam Preparation Tasks 569End-of-Chapter Lab 570Chapter 27 Final Preparation 573General Tips 573    Verifying Your Readiness 573    Registering for the Exam 573    On Exam Day 574        During the Exam 574        The Nondisclosure Agreement 576Chapter 28 Theoretical Pre-Assessment Exam 577Part V: RHCSA RHEL 8 Practice ExamsRHCSA Practice Exam A 581RHCSA Practice Exam B 583Appendix A Answers to the Do I Know This Already? Quizzes and Review Questions 585Glossary 619
Online Elements:RHCSA Practice Exam CRHCSA Practice Exam DAppendix B Memory TablesAppendix C Memory Tables Answer KeyAppendix D Study PlannerGlossary

9780137341627   TOC   2/12/2021

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