Oracle Linux 8: System Administration I

• Knowledge of Linux system

Audience

• System administrator
• Technical consultant
• Database administrator

Oracle Linux is a high-performance and secure operating environment that delivers an easy-to-manage environment for virtualization, management, automation, and cloud-native computing tools.

This instructor-led, live training (online or onsite) is aimed at system administrators who wish to learn how to use and manage an Oracle Linux 8 system.

By the end of this training, participants will be able to:

• Configure passwordless authentication.
• Administer user and group accounts.
• Configure network interface.
• Monitor and troubleshoot Oracle Linux.

Format of the Course

• Interactive lecture and discussion.
• Lots of exercises and practice.
• Hands-on implementation in a live-lab environment.

Course Customization Options

• To request a customized training for this course, please contact us to arrange.

Introduction

• Overview of Oracle Linux
• Exploring the gateway machine
• Exploring the host VM

Getting Started with Oracle Linux

• Installing Oracle Linux 8
• Connecting to a remote server by using SSH
• Configuring OpenSSH

Using the GRUB Bootloader

• Overview of the GRUB Bootloader
• Configuring the GRUB 2 Bootloader
• Exploring the GRUB 2 Bootloader
• Booting different kernels

Introduction to Systemd

• Overview of systemd
• Understanding the service unit file
• Using grub menu and command line
• Using systemd units
• Using systemd service units

Managing Time

• Managing system tasks
• Configuring date and time
• Configuring Chrony
• Automating tasks

Configuring Device and Kenel

• Understanding the sysfs file system
• Updating using DNF
• Using loadable kernel modules
• Using /proc file and sysfs file system
• Using the sysctl utility
• Configuring udev rules

Managing Packages

• Installing, updating, or removing packages using dnf
• Using the rpm utility
• Accessing the Oracle Linux yum server
• Creating a local yum repository
• Using the dnf utility and modules

Using Oracle Ksplice

• Ksplice web interface
• Installing the Ksplice offline client
• Ksplice online updates

User and Group Administration

• Group account administration
• Installing and using Oracle/ local case file
• Administering user and group accounts
• Implementing user private groups
• Configuring password aging
• Allowing and restricting sudo command

Using partitions, file systems, and swap

• Removing partitions
• File system types
• Listing the current disk partitions
• Partitioning a storage device
• Creating ext4 file systems
• Increasing swap space

Configuring the Network

• Understanding the nmcli radio object
• Configuring the ethl network interface
• Using the nmcli and nmtui utility
• Using the ip utility

Securing the Network

• Overview of network security
• Starting and configuring firewalld
• Configuring nftables

Oracle on Oracle

• Understanding Oracle-related shell limits
• Installing and running Oracle database preinstall
• Preparing disks for ASM
• Installing and configuring ASMLib
• Reverting changes

Monitoring and Managing the System

• Using the top utility
• OSWatcher analyzer (OSWbba)
• Using sosreport
• Using standard Linux performance monitoring tools
• Installing and using OSWatcher
• Using OSWatcher analyzer

Using System Logging

• Configuring log rotation
• Configuring system logging
• Using rsyslog templates
• Using logwatch
• Using systemd-journald

Troubleshooting

Summary and Next Steps