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Blue Skies

Oracle Linux 8: System Administration I

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Oracle Linux 8: System Administration I

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Duration: 5 Days 

 

Course Overview

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  • This course is first in a series of three Oracle Linux 8 System Administration courses that covers the system administration tasks. The lab environment is validated against the latest Oracle Linux 8 release.

 

Target Audience

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This course is best suited for:

  • System Administrator

  • Support Engineer

  • Technical Consultant

  • Database Administrator

  • Linux Administrator

 

Learning Objectives 

  • Upon completion of this course, participants will learn to:

  • Configure Passwordless authentication

  • Configure Date, Time, and Chrony

  • Automate Tasks with cron and systemd

  • Use Loadable Kernel Modules

  • Use sysctl, rpm and dnf

  • Create a Local Yum Repository

  • Install the Ksplice Offline Client

  • Administer User and Group Accounts

  • Restrict the Use of the su Command

  • Allow the Use of the sudo Command

  • Partition Storage Device, create ext4 File Systems, and Increase Swap Space

  • Configure Network Interface

  • Use nmcli, nmtui, and ip

  • Configure firewalld and nftables

  • Install and Run Oracle Database Preinstall

  • Prepare Disks for ASM Use

  • Use sosreport to Collect System Information

  • Use Standard Linux Performance Monitoring Tools

  • Use OSWatcher and OSWatcher Analyzer

  • Use rsyslog Templates, logwatch, and systemd-journald

 

Course Prerequisites

  • UNIX and Linux Essentials Ed 2

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Course Outline

 

Module 1 : Course Introduction

  • Course Introduction

  • Demonstration

  • Practice 1-1: Exploring the Gateway Machine

  • Practice 1-2: Exploring the host02 VM

  • Practice 1-3: Exploring the host03 VM

  • Practice 1-4: Logging Off from Your Gateway Machine

 

Module 2 : Introduction to Oracle Linux

  • Introduction to Oracle Linux

  • Oracle Linux

  • Practice 2-1: Quiz - Introduction to Oracle Linux

  • Practice 2-2: Viewing Kernel Information

 

Module 3 : Installing Oracle Linux 8

  • Installing Oracle Linux 8

  • Installation Destination

  • Demonstration: Installing Oracle Linux 8

 

Module 4 : OpenSSH

  • OpenSSH

  • Demo 4-1: System Installation

  • Practice 4-1: Connecting to a Remote Server by Using SSH

  • Practice 4-2: Configuring OpenSSH to Connect Without a Password

 

Module 5 : The GRUB Bootloader

  • The GRUB Bootloader

  • GRUB 2 Bootloader Configuration

  • Practice 5-1: Exploring the GRUB 2 Bootloader

  • Practice 5-2: Booting Different Kernels

  • Practice 5-3: Rebuilding the initramfs

  • Demonstration: Accessing the GRUB Menu to Select Different Kernels and to Modify Boot

               Parameters

 

Module 6 : Introduction to systemd

  • Introduction to systemd

  • The Service Unit File

  • Demoe 6-1: Grub Menu and Command Line

  • Practice 6-1: Exploring systemd Units

  • Practice 6-2: Working with systemd Service Units

 

Module 7 : Managing Time

  • Managing Time

  • Automating System Tasks

  • Practice 7-1: Configuring Date and Time

  • Practice 7-2: Configuring Chrony

  • Practice 7-3: Automating Tasks with chron

  • Practice 7-4: Automating Tasks Using systemd Timers

 

Module 8 : Kernel and Device Configuration

  • Kernel and Device Configuration

  • The sysfs File System

  • Demo 8-1: Update or Upgrade Using DNF

  • Practice 8-1: Using Loadable Kernel Modules

  • Practice 8-2: Exploring the /proc File System

  • Practice 8-3: Exploring the sysfs File System

  • Practice 8-4: Using the sysctl Utility

  • Practice 8-5: Exploring and Configuring udev Rules

 

Module 9 : Package Management

  • Package Management

  • Using dnf to Install, Upgrade, or Remove Packages

  • Practice 9-1: Using the rpm Utility

  • Practice 9-2: Accessing the Oracle Linux Yum Server

  • Practice 9-3: Creating a Local Yum Repository

  • Practice 9-4: Using the dnf Utility

  • Practice 9-5: Using dnf Modules

 

Module 10 : Oracle Ksplice

  • Oracle Ksplice

  • Ksplice Web Interface: System Status Detail

  • Practice 10-1: Installing the Ksplice Offline Client and Kernel Updates

  • Practice 10-2: Ksplice Online Updates

 

Module 11 : User and Group Administration

  • User and Group Administration

  • Group Account Administration

  • Demo 11-1: Install and use oracle/ local case file

  • Practice 11-1: Administering User Accounts

  • Practice 11-2: Administering Group Accounts

  • Practice 11-3: Implementing User Private Groups

  • Practice 11-4: Configuring Password Aging

  • Practice 11-5: Restricting the Use of the su Command

  • Practice 11-6: Allowing the Use of the sudo Command

 

Module 12 : Partitions, File Systems, and Swap

  • Partitions, File Systems, and Swap

  • Practice 12-5: Removing Partitions and Additional Swap Space

  • File System Types

  • Practice 12-1: Listing the Current Disk Partitions

  • Practice 12-2: Partitioning a Storage Device

  • Practice 12-3: Creating ext4 File Systems

  • Practice 12-4: Increasing Swap Space

Module 13 : Network Configuration

  • Network Configuration

  • The nmcli radio Object

  • Practice 13-1: Configuring the ethl Network Interface

  • Practice 13-2: Using the nmcli Utility

  • Practice 13-3: Using the nmtui Utility

  • Practice 13-4: Using the ip Utility

 

Module 14 : Network Security

  • Network Security

  • Starting firewalld

  • Practice 14-1: Exploring firewalld

  • Practice 14-2: Configuring firewalld

  • Practice 14-3: Configuring nftables

 

Module 15 : Oracle On Oracle

  • Oracle On Oracle

  • Oracle-Related Shell Limits

  • Practice 15-1: Installing and Running Oracle Database Preinstall

  • Practice 15-2: Preparing disks for ASM use

  • Practice 15-3: Installing and Configuring ASMLib

  • Practice 15-4: Reverting Changes Made to host02

 

Module 16 : System Monitoring and Management

  • System Monitoring and Management

  • top Utility

  • OSWatcher Analyzer (OSWbba)

  • Practice 16-1: Using sosreport to Collect System Information

  • Practice 16-2: Using Standard Linux Performance Monitoring Tools

  • Practice 16-3: Installing and Using OSWatcher

  • Practice 16-4: Using OSWatcher Analyzer

 

Module 17 : System Logging

  • System Logging

  • Configuring Log Rotation (logrotate)

  • Practice 17-1: Configuring System Logging

  • Practice 17-2: Using rsyslog Templates

  • Practice 17-3: Using logwatch

  • Practice 17-4: Using systemd-journald

  

Module 18 : Troubleshooting

  • Troubleshooting

  • Practice 18-1: Transferring Utilities from Gateway & System Utility Commands Fail

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