rhcsa - ex200ipcompro.com/ipcompro/training-materials/linux/slides/... · 2018. 12. 17. · rhcsa -...

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RHCSA - EX200

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TrainerAli AydemirCISCO, CCIE #47287 SP/RS, CCSI#35413

AVAYA, ACE-Fx #169

HUAWEI, HCDP

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RHCSA TimetableDay 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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Chapter 16:

Basic Kernel Management

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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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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

on 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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Understanding the Role of the Linux Kernel

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Understanding the use of Kernel Threads and Drivers

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Understanding the use of Kernel Threads and Drivers

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Analyzing What the Kernel Is Doing

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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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Understanding Hardware Initialization

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Understanding Hardware Initialization

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Managing Kernel Modules

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Exercise 16.1 Managing Kernel Modules from the Command Line

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Checking Driver Availability for Hardware Devices

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Checking Driver Availability for Hardware Devices

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Managing Kernel Module Parameters

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Exercise 16.2 Loading Kernel Modules with Parameters

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Exercise 16.2 Loading Kernel Modules with Parameters

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Upgrading the Linux Kernel

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Summary

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Define Key Terms

Define the following key terms:

• kernel,

• module,

• dmesg,

• udev,

• sysfs,

• proc

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Lab 16.1

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Chapter 17:

Configuring a Basic Apache Server

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• Configuring a Basic Apache Server

• Understanding Apache Configuration files

• Creating Apache Virtual Hosts


chapter:

• No RHCSA exam objectives relate directly to Apache

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Configuring a Basic Apache Server

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Installing the Required Software

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Identifying the Main Configuration File

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Identifying the Main Configuration File

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Exercise 17.1 Setting Up a Basic Web Server

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Exercise 17.1 Setting Up a Basic Web Server

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Understanding Apache Configuration Files

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Understanding Apache Configuration Files

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Creating Apache Virtual Hosts

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Creating Apache Virtual Hosts

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Exercise 17.2 Installing Apache Virtual Hosts

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Summary

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Define Key Terms


• DocumentRoot,

• virtual hosts,

• chroot

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Lab 17.1

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Chapter 18:

Managing and Understanding the Boot Procedure

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• Working with Systemd

• Working with GRUB 2


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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Managing and Understandingthe Boot Procedure

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Working with Systemd

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Understanding Systemd

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Understanding Systemd

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Understanding Service Units

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Understanding Target Units

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Understanding Wants

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Managing Units Through Systemd

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Exercise 18.1 Managing Units with systemctl

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Exercise 18.1 Managing Units with systemctl

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Managing Units with systemctl

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Managing Systemd Targets

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Managing Systemd Targets

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Isolating Targets

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Isolating Targets

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Exercise 18.2 Isolating Targets

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Setting the Default Target

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Working with GRUB 2

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Understanding GRUB 2

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Modifying Default GRUB 2 Boot Options

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Modifying Default GRUB 2 Boot Options

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Exercise 18.3 Applying Modifications to GRUB2

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Summary

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Define Key Terms


• unit,

• wants,

• target,

• systemd,

• dependencies,

• kernel,

• boot loader,

• GRUB

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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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Chapter 19:

Essential Boot Procedure Troubleshooting

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• Understanding the RHEL 7 Boot Procedure

• Passing Kernel Boot Arguments

• Using a Rescue Disk

• Fixing Common Issues

• Recovering Access to a Virtual Machine


chapter:

• Boot systems into different targets manually

• Interrupt the boot process in order to gain access to a system

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Troubleshooting the Boot Procedure

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Understanding the RHEL 7 Boot Procedure

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Boot Phase Configuration and Troubleshooting Overview

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Passing Kernel Boot Arguments

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Accessing the Boot Prompt

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Starting a Troubleshooting Target

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Exercise 19.1 Exploring troubleshooting targets.

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Using a Rescue Disk

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Restoring System Access Using a Rescue Disk

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Exercise 19.2 Using the Rescue Option

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Reinstalling GRUB Using a Rescue Disk

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Re-Creating the Initramfs Using a Rescue Disk

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Fixing Common Issues

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Reinstalling GRUB 2

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Fixing the Initramfs

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Recovering from File System Issues

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Recovering from File System Issues

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Resetting the Root Password

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Summary

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Define Key Terms


• target,

• GRUB,

• initramfs,

• dracut

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Lab 19.1

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Chapter 20:

Using Kickstart

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• Setting Up an Installation Server

• Setting Up a TFTP and DHCP Server for PXE Boot

• Creating a Kickstart File


chapter:

• Installing Red Hat Enterprise Linux automatically using Kickstart

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Using Kickstart

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Setting Up an Installation Server

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Configuring a Network Server as Installation Server

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Exercise 20.1 Setting Up the Network Installation Server

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Exercise 20.1 Setting Up the Network Installation Server

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Setting Up a TFTP and DHCP Server for PXE Boot

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Configuring DHCP for PXE Boot

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Creating the TFTP PXE Server Content

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Exercise 20.2 Configuring the TFTP Server for PXE Boot

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Creating a Kickstart File

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Using a Kickstart File to Perform an Automated Installation

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Using a Kickstart File to Perform an Automated Installation

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

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

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Modifying the Kickstart File with system-config-kickstart

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Making Manual Modifications to the KickstartFile

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Summary

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Define Key Terms


• xinetd,

• tftp,

• installation server,

• Kickstart,

• anaconda

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Lab 20.1

rhcsa - ex200ipcompro.com/ipcompro/training-materials/linux/slides/... · 2018. 12. 17. · rhcsa -...

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