RHCSA - EX200 RHCSA DAY - 04 RHCSA Trainer Ali Aydemir CISCO, - - PowerPoint PPT Presentation

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RHCSA - EX200 RHCSA DAY - 04 RHCSA Trainer Ali Aydemir CISCO, - - PowerPoint PPT Presentation

Jan 26, 2023 187 likes •1.85k views

RHCSA RHCSA - EX200 RHCSA DAY - 04 RHCSA Trainer Ali Aydemir CISCO, CCIE #47287 SP/RS, CCSI#35413 AVAYA, ACE-Fx #169 HUAWEI, HCDP RHCSA DAY - 04 RHCSA RHCSA Timetable Day AM Lunch PM -Essential File Management -Installing RHEL

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RHCSA DAY - 04

RHCSA

RHCSA - EX200

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SLIDE 2

RHCSA DAY - 04

RHCSA

Trainer

Ali Aydemir

CISCO, CCIE #47287 SP/RS, CCSI#35413 AVAYA, ACE-Fx #169 HUAWEI, HCDP

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RHCSA DAY - 04

RHCSA

RHCSA Timetable

Day AM Lunch PM 1

  • Installing RHEL Server
  • Using Essential Tools
  • Essential File Management
  • ToolsWorking with Text Files
  • Connecting to a RHEL Server

2

  • User and Group Management
  • Permissions Management
  • Configuring Networking
  • Process Management
  • Working with Virtual Machines

3

  • Installing Software Packages
  • Scheduling Tasks
  • Configuring Logging
  • Managing Partitions
  • Managing LVM Logical Volumes

4

  • Basic Kernel Management
  • Configuring a Basic Apache

Server

  • Managing and Understanding

the Boot Procedure

  • Essential Boot Procedure

Troubleshooting 5

  • Managing SELinux
  • Configuring a Firewall
  • Configuring Remote Mounts

and FTP

  • Configuring Time Services
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RHCSA DAY - 04

RHCSA

Chapter 16: Basic Kernel Management

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5 RHCSA DAY - 04

RHCSA

Chapter 16 Objectives

  • The following topics are covered in this chapter:
  • Understanding the Role of the Linux Kernel
  • Working with Kernel Modules
  • Updating the Linux Kernel
  • The following RHCSA exam objectives are covered in this

chapter:

  • Update the kernel package appropriately to ensure a bootable system
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6 RHCSA DAY - 04

RHCSA

Basic Kernel Management

  • The Linux kernel is the heart of the Linux operating system.

It takes care of many things, including hardware

  • management. In this chapter, you learn all you need to

know about the Linux kernel from an RHCSA perspective. In fact, you even learn a bit more.

  • This chapter includes information about topics that are not
  • n the current list of RHCSA objectives. I think it is good to

know about these topics anyway. Any serious Linux administrator should be able to deal with issues related to the topics discussed in this chapter.

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7 RHCSA DAY - 04

RHCSA

Understanding the Role of the Linux Kernel

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8 RHCSA DAY - 04

RHCSA

Understanding the use of Kernel Threads and Drivers

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9 RHCSA DAY - 04

RHCSA

Understanding the use of Kernel Threads and Drivers

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10 RHCSA DAY - 04

RHCSA

Analyzing What the Kernel Is Doing

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11 RHCSA DAY - 04

RHCSA

Analyzing What the Kernel Is Doing

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12 RHCSA DAY - 04

RHCSA

Analyzing What the Kernel Is Doing

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13 RHCSA DAY - 04

RHCSA

Analyzing What the Kernel Is Doing

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14 RHCSA DAY - 04

RHCSA

Working with Kernel Modules

  • In the old days of Linux, kernels had to be compiled to

include all drivers that were required to support computer

  • hardware. Other specific functionality needed to be

compiled into the kernel as well.

  • Since the release of Linux kernel 2.0 in the mid 1990s,

kernels are no longer compiled but modular. A modular kernel consists of a relatively small core kernel and provides driver support through modules that are loaded when required. Modular kernels are very efficient, as only those modules that really are needed are included.

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15 RHCSA DAY - 04

RHCSA

Understanding Hardware Initialization

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16 RHCSA DAY - 04

RHCSA

Understanding Hardware Initialization

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17 RHCSA DAY - 04

RHCSA

Managing Kernel Modules

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18 RHCSA DAY - 04

RHCSA

Managing Kernel Modules

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19 RHCSA DAY - 04

RHCSA

Managing Kernel Modules

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20 RHCSA DAY - 04

RHCSA

Managing Kernel Modules

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21 RHCSA DAY - 04

RHCSA

Managing Kernel Modules

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22 RHCSA DAY - 04

RHCSA

Managing Kernel Modules

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23 RHCSA DAY - 04

RHCSA

Exercise 16.1 Managing Kernel Modules from the Command Line

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24 RHCSA DAY - 04

RHCSA

Checking Driver Availability for Hardware Devices

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25 RHCSA DAY - 04

RHCSA

Checking Driver Availability for Hardware Devices

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26 RHCSA DAY - 04

RHCSA

Managing Kernel Module Parameters

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27 RHCSA DAY - 04

RHCSA

Exercise 16.2 Loading Kernel Modules with Parameters

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28 RHCSA DAY - 04

RHCSA

Exercise 16.2 Loading Kernel Modules with Parameters

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29 RHCSA DAY - 04

RHCSA

Upgrading the Linux Kernel

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30 RHCSA DAY - 04

RHCSA

Summary

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31 RHCSA DAY - 04

RHCSA

Define Key Terms

  • Define the following key terms:
  • kernel,
  • module,
  • dmesg,
  • udev,
  • sysfs,
  • proc
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32 RHCSA DAY - 04

RHCSA

Lab 16.1

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33 RHCSA DAY - 04

RHCSA

Chapter 17: Configuring a Basic Apache Server

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34 RHCSA DAY - 04

RHCSA

Chapter 17 Objectives

  • The following topics are covered in this chapter:
  • Configuring a Basic Apache Server
  • Understanding Apache Configuration files
  • Creating Apache Virtual Hosts
  • The following RHCSA exam objectives are covered in this

chapter:

  • No RHCSA exam objectives relate directly to Apache
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35 RHCSA DAY - 04

RHCSA

Configuring a Basic Apache Server

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36 RHCSA DAY - 04

RHCSA

Installing the Required Software

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37 RHCSA DAY - 04

RHCSA

Identifying the Main Configuration File

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38 RHCSA DAY - 04

RHCSA

Identifying the Main Configuration File

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39 RHCSA DAY - 04

RHCSA

Exercise 17.1 Setting Up a Basic Web Server

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40 RHCSA DAY - 04

RHCSA

Exercise 17.1 Setting Up a Basic Web Server

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41 RHCSA DAY - 04

RHCSA

Understanding Apache Configuration Files

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42 RHCSA DAY - 04

RHCSA

Understanding Apache Configuration Files

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43 RHCSA DAY - 04

RHCSA

Creating Apache Virtual Hosts

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44 RHCSA DAY - 04

RHCSA

Creating Apache Virtual Hosts

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45 RHCSA DAY - 04

RHCSA

Exercise 17.2 Installing Apache Virtual Hosts

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46 RHCSA DAY - 04

RHCSA

Exercise 17.2 Installing Apache Virtual Hosts

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47 RHCSA DAY - 04

RHCSA

Exercise 17.2 Installing Apache Virtual Hosts

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48 RHCSA DAY - 04

RHCSA

Exercise 17.2 Installing Apache Virtual Hosts

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49 RHCSA DAY - 04

RHCSA

Summary

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50 RHCSA DAY - 04

RHCSA

Define Key Terms

  • Define the following key terms:
  • DocumentRoot,
  • virtual hosts,
  • chroot
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51 RHCSA DAY - 04

RHCSA

Lab 17.1

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52 RHCSA DAY - 04

RHCSA

Chapter 18: Managing and Understanding the Boot Procedure

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53 RHCSA DAY - 04

RHCSA

Chapter 18 Objectives

  • The following topics are covered in this chapter:
  • Working with Systemd
  • Working with GRUB 2
  • The following RHCSA exam objectives are covered in this

chapter:

  • Start and stop services and configure services to start automatically at

boot

  • Configure systems to boot into a specific target automatically
  • Modify the system bootloader
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54 RHCSA DAY - 04

RHCSA

Managing and Understanding the Boot Procedure

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55 RHCSA DAY - 04

RHCSA

Working with Systemd

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56 RHCSA DAY - 04

RHCSA

Understanding Systemd

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57 RHCSA DAY - 04

RHCSA

Understanding Systemd

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58 RHCSA DAY - 04

RHCSA

Understanding Service Units

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59 RHCSA DAY - 04

RHCSA

Understanding Service Units

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60 RHCSA DAY - 04

RHCSA

Understanding Service Units

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61 RHCSA DAY - 04

RHCSA

Understanding Service Units

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62 RHCSA DAY - 04

RHCSA

Understanding Service Units

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63 RHCSA DAY - 04

RHCSA

Understanding Target Units

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64 RHCSA DAY - 04

RHCSA

Understanding Target Units

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65 RHCSA DAY - 04

RHCSA

Understanding Target Units

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66 RHCSA DAY - 04

RHCSA

Understanding Wants

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67 RHCSA DAY - 04

RHCSA

Managing Units Through Systemd

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68 RHCSA DAY - 04

RHCSA

Exercise 18.1 Managing Units with systemctl

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69 RHCSA DAY - 04

RHCSA

Exercise 18.1 Managing Units with systemctl

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70 RHCSA DAY - 04

RHCSA

Managing Units with systemctl

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71 RHCSA DAY - 04

RHCSA

Managing Units with systemctl

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72 RHCSA DAY - 04

RHCSA

Managing Units with systemctl

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73 RHCSA DAY - 04

RHCSA

Managing Systemd Targets

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74 RHCSA DAY - 04

RHCSA

Managing Systemd Targets

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75 RHCSA DAY - 04

RHCSA

Isolating Targets

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76 RHCSA DAY - 04

RHCSA

Isolating Targets

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77 RHCSA DAY - 04

RHCSA

Exercise 18.2 Isolating Targets

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78 RHCSA DAY - 04

RHCSA

Setting the Default Target

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79 RHCSA DAY - 04

RHCSA

Working with GRUB 2

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80 RHCSA DAY - 04

RHCSA

Understanding GRUB 2

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81 RHCSA DAY - 04

RHCSA

Understanding GRUB 2

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82 RHCSA DAY - 04

RHCSA

Understanding GRUB 2

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83 RHCSA DAY - 04

RHCSA

Modifying Default GRUB 2 Boot Options

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84 RHCSA DAY - 04

RHCSA

Modifying Default GRUB 2 Boot Options

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85 RHCSA DAY - 04

RHCSA

Exercise 18.3 Applying Modifications to GRUB2

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86 RHCSA DAY - 04

RHCSA

Summary

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87 RHCSA DAY - 04

RHCSA

Define Key Terms

  • Define the following key terms:
  • unit,
  • wants,
  • target,
  • systemd,
  • dependencies,
  • kernel,
  • boot loader,
  • GRUB
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88 RHCSA DAY - 04

RHCSA

Lab 18.1

  • Make sure that the firewalld service is started on boot. Also

make sure that the iptables service can never be started at the same time.

  • Change your GRUB 2 boot configuration so that you will

see boot messages upon startup.

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89 RHCSA DAY - 04

RHCSA

Chapter 19: Essential Boot Procedure Troubleshooting

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90 RHCSA DAY - 04

RHCSA

Chapter 19 Objectives

  • The following topics are covered in this chapter:
  • Understanding the RHEL 7 Boot Procedure
  • Passing Kernel Boot Arguments
  • Using a Rescue Disk
  • Fixing Common Issues
  • Recovering Access to a Virtual Machine
  • The following RHCSA exam objectives are covered in this

chapter:

  • Boot systems into different targets manually
  • Interrupt the boot process in order to gain access to a system
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91 RHCSA DAY - 04

RHCSA

Troubleshooting the Boot Procedure

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92 RHCSA DAY - 04

RHCSA

Understanding the RHEL 7 Boot Procedure

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93 RHCSA DAY - 04

RHCSA

Understanding the RHEL 7 Boot Procedure

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94 RHCSA DAY - 04

RHCSA

Understanding the RHEL 7 Boot Procedure

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95 RHCSA DAY - 04

RHCSA

Boot Phase Configuration and Troubleshooting Overview

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96 RHCSA DAY - 04

RHCSA

Passing Kernel Boot Arguments

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97 RHCSA DAY - 04

RHCSA

Accessing the Boot Prompt

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98 RHCSA DAY - 04

RHCSA

Accessing the Boot Prompt

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99 RHCSA DAY - 04

RHCSA

Accessing the Boot Prompt

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100 RHCSA DAY - 04

RHCSA

Starting a Troubleshooting Target

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101 RHCSA DAY - 04

RHCSA

Exercise 19.1 Exploring troubleshooting targets.

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102 RHCSA DAY - 04

RHCSA

Using a Rescue Disk

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103 RHCSA DAY - 04

RHCSA

Restoring System Access Using a Rescue Disk

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104 RHCSA DAY - 04

RHCSA

Restoring System Access Using a Rescue Disk

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105 RHCSA DAY - 04

RHCSA

Restoring System Access Using a Rescue Disk

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106 RHCSA DAY - 04

RHCSA

Exercise 19.2 Using the Rescue Option

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107 RHCSA DAY - 04

RHCSA

Exercise 19.2 Using the Rescue Option

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108 RHCSA DAY - 04

RHCSA

Exercise 19.2 Using the Rescue Option

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109 RHCSA DAY - 04

RHCSA

Reinstalling GRUB Using a Rescue Disk

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110 RHCSA DAY - 04

RHCSA

Re-Creating the Initramfs Using a Rescue Disk

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111 RHCSA DAY - 04

RHCSA

Fixing Common Issues

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112 RHCSA DAY - 04

RHCSA

Reinstalling GRUB 2

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113 RHCSA DAY - 04

RHCSA

Fixing the Initramfs

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114 RHCSA DAY - 04

RHCSA

Recovering from File System Issues

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115 RHCSA DAY - 04

RHCSA

Recovering from File System Issues

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116 RHCSA DAY - 04

RHCSA

Resetting the Root Password

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117 RHCSA DAY - 04

RHCSA

Resetting the Root Password

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118 RHCSA DAY - 04

RHCSA

Resetting the Root Password

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119 RHCSA DAY - 04

RHCSA

Summary

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120 RHCSA DAY - 04

RHCSA

Define Key Terms

  • Define the following key terms:
  • target,
  • GRUB,
  • initramfs,
  • dracut
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121 RHCSA DAY - 04

RHCSA

Lab 19.1

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122 RHCSA DAY - 04

RHCSA

Chapter 20: Using Kickstart

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123 RHCSA DAY - 04

RHCSA

Chapter 20 Objectives

  • The following topics are covered in this chapter:
  • Setting Up an Installation Server
  • Setting Up a TFTP and DHCP Server for PXE Boot
  • Creating a Kickstart File
  • The following RHCSA exam objectives are covered in this

chapter:

  • Installing Red Hat Enterprise Linux automatically using Kickstart
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RHCSA

Using Kickstart

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125 RHCSA DAY - 04

RHCSA

Setting Up an Installation Server

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126 RHCSA DAY - 04

RHCSA

Configuring a Network Server as Installation Server

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127 RHCSA DAY - 04

RHCSA

Exercise 20.1 Setting Up the Network Installation Server

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128 RHCSA DAY - 04

RHCSA

Exercise 20.1 Setting Up the Network Installation Server

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129 RHCSA DAY - 04

RHCSA

Setting Up a TFTP and DHCP Server for PXE Boot

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130 RHCSA DAY - 04

RHCSA

Setting Up a TFTP and DHCP Server for PXE Boot

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131 RHCSA DAY - 04

RHCSA

Setting Up a TFTP and DHCP Server for PXE Boot

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132 RHCSA DAY - 04

RHCSA

Setting Up a TFTP and DHCP Server for PXE Boot

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133 RHCSA DAY - 04

RHCSA

Setting Up a TFTP and DHCP Server for PXE Boot

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134 RHCSA DAY - 04

RHCSA

Configuring DHCP for PXE Boot

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135 RHCSA DAY - 04

RHCSA

Configuring DHCP for PXE Boot

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136 RHCSA DAY - 04

RHCSA

Configuring DHCP for PXE Boot

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137 RHCSA DAY - 04

RHCSA

Creating the TFTP PXE Server Content

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138 RHCSA DAY - 04

RHCSA

Exercise 20.2 Configuring the TFTP Server for PXE Boot

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139 RHCSA DAY - 04

RHCSA

Exercise 20.2 Configuring the TFTP Server for PXE Boot

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140 RHCSA DAY - 04

RHCSA

Exercise 20.2 Configuring the TFTP Server for PXE Boot

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141 RHCSA DAY - 04

RHCSA

Exercise 20.2 Configuring the TFTP Server for PXE Boot

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142 RHCSA DAY - 04

RHCSA

Exercise 20.2 Configuring the TFTP Server for PXE Boot

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143 RHCSA DAY - 04

RHCSA

Exercise 20.2 Configuring the TFTP Server for PXE Boot

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144 RHCSA DAY - 04

RHCSA

Creating a Kickstart File

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145 RHCSA DAY - 04

RHCSA

Using a Kickstart File to Perform an Automated Installation

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146 RHCSA DAY - 04

RHCSA

Using a Kickstart File to Perform an Automated Installation

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147 RHCSA DAY - 04

RHCSA

Exercise 20.3 Performing a Virtual Machine Network Installation Using a Kickstart File

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148 RHCSA DAY - 04

RHCSA

Exercise 20.3 Performing a Virtual Machine Network Installation Using a Kickstart File

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149 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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150 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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151 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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152 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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153 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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154 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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155 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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156 RHCSA DAY - 04

RHCSA

Modifying the Kickstart File with system- config-kickstart

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157 RHCSA DAY - 04

RHCSA

Making Manual Modifications to the Kickstart File

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158 RHCSA DAY - 04

RHCSA

Making Manual Modifications to the Kickstart File

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159 RHCSA DAY - 04

RHCSA

Making Manual Modifications to the Kickstart File

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160 RHCSA DAY - 04

RHCSA

Making Manual Modifications to the Kickstart File

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161 RHCSA DAY - 04

RHCSA

Making Manual Modifications to the Kickstart File

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162 RHCSA DAY - 04

RHCSA

Summary

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163 RHCSA DAY - 04

RHCSA

Define Key Terms

  • Define the following key terms:
  • xinetd,
  • tftp,
  • installation server,
  • Kickstart,
  • anaconda
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164 RHCSA DAY - 04

RHCSA

Lab 20.1

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Q&A