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Linux Red Hat 9 Administration Essentials

Linux is a free and open-source Operating System (OS) based on the Unix operating system. Linux is known for its stability, security, and flexibility, and it is widely used in servers, desktops, and embedded devices. 

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  • 20 hours & 15 minutes over 3 sessions

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  • Mon, Oct 07 at 10:00am - 4:45pm
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Class Description

Description

What you'll learn in this linux training:

The course of training is designed to provide students with the most important and frequently performed administrative operations for a Red Hat Enterprise Linux 9 system. The workshop will have students performing operations and executing commands on the system throughout the course. Students will have the option of typing commands or cutting and pasting completed commands from the course materials if they would have difficulty typing in entire commands.

Audience Profile

This course is intended for IT professionals who do not have experience working with Red Hat Enterprise Linux 9, and who are looking for a single three day course that covers the specific administrative operations of the respective Linux systems.

Prerequisites

Previous experience with computer systems which may include the administration of a Windows system.

COURSE OUTLINE

Installing the System

  • Obtaining the Red Hat Enterprise Linux Installation Media
  • Installing Red Hat Enterprise Linux 9
  • Partitioning a Disk for System Installation
  • The Physical Installation
  • Final Configuration Steps
  • Installing Updates

A Guided Tour of the GNOME Desktop

  • An Overview of the GNOME Desktop
  • Launching Activities
  • Managing Windows
  • Using Workspaces

An Overview of Cockpit

  • Installing and Enabling Cockpit
  • Accessing Cockpit
  • System, Logs, Storage, Networking, Virtual Machines, Accounts
  • Services, Software Updates, Subscriptions, Terminal

Using the Bash Shell

  • What is a Shell?
  • Gaining Access to the Shell
  • Entering Commands at the Prompt
  • Getting Information about a Command
  • Bash Command-line Editing
  • Working with the Shell History
  • Filename Shorthand
  • Filename and Path Completion
  • Input and Output Redirection
  • Working with Pipes in the Bash Shell
  • Configuring Aliases
  • Environment Variables

Managing Users and Groups

  • User Management from the Command-line

Adding a New Disk Drive to a System

  • Mounted File Systems or Logical Volumes
  • Finding the New Hard Drive
  • Creating Linux Partitions
  • Creating a File System on a Disk Partition
  • An Overview of Journaled File Systems
  • Mounting a File System
  • Configuring to Automatically Mount a File System

Understanding Software Installation and Management Repositories

  • The BaseOS Repository
  • The AppStream Repository

Configuring systemd Units

  • Understanding systemd Targets
  • Understanding systemd Services
  • systemd Target Descriptions
  • Identifying and Configuring the Default Target
  • Understanding systemd Units and Unit Types
  • Dynamically Changing the Current Target
  • Enabling, Disabling and Masking systemd Units

Network Management

  • An Introduction to NetworkManager
  • Installing and Enabling NetworkManager
  • Basic nmcli Commands
  • Working with Connection Profiles
  • Interactive Editing
  • Configuring NetworkManager Permissions

Basic Firewall Configuration with firewalld

  • An Introduction to firewalld
  • Zones
  • Interfaces
  • Services
  • Ports
  • Checking firewalld Status
  • Configuring Firewall Rules with firewall-cmd
  • Identifying and Changing the Default Zone
  • Displaying Zone Information
  • Adding and Removing Zone Services
  • Working with Port-based Rules
  • Creating a New Zone
  • Changing Zone/Interface Assignments
  • Masquerading
  • Adding ICMP Rules
  • Implementing Port Forwarding
  • Managing firewalld from the Cockpit Interface
  • Managing firewalld using firewall-config

Configuring SSH Key-based Authentication

  • An Overview of Secure Shell (SSH)
  • SSH Key-based Authentication
  • Setting Up Key-based Authentication
  • SSH Key-based Authentication from Linux and macOS Clients
  • Managing Multiple Keys
  • SSH Key-based Authentication from Windows 10 Clients

Remote Desktop Access with VNC and rdp

  • Secure and Insecure Remote Desktop Access
  • Installing VNC and rdp
  • Connecting to a VNC Server
  • Configuring and Using rdp

Using NFS to Share Files with Remote Systems

  • Ensuring NFS Services are running
  • Configuring the Firewall to Allow NFS Traffic
  • Specifying the Folders to be Shared
  • Accessing Shared Folders
  • Mounting an NFS Filesystem on System Startup
  • Unmounting an NFS Mount Point

Sharing Files with a Windows Systems using Samba

  • Samba and Samba Client
  • Installing a Samba System
  • Configuring the Firewall to Enable Samba
  • Configuring the smbconf File
  • Configuring the [global] Section
  • Configuring a Shared Resource
  • Removing Unnecessary Shares
  • Configuring SELinux for Samba
  • Creating a Samba User
  • Testing the smbconf File
  • Starting the Samba and NetBIOS Name Services
  • Accessing Samba Shares
  • Accessing Windows Shares

Setting Up a Web Server

  • Requirements for Configuring a Web Server
  • Installing the Apache Web Server Packages
  • Configuring the Firewall
  • Port Forwarding
  • Starting the Apache Web Server
  • Testing the Web Server
  • Configuring the Apache Web Server for Your Domain
  • The Basics of a Secure Web Site
  • Configuring Apache for HTTPS

Adding a New Disk to a Volume Group and Logical Volume

  • An Overview of Logical Volume Management (LVM)
  • Volume Group (VG)
  • Physical Volume (PV)
  • Logical Volume (LV)
  • Physical Extent (PE)
  • Logical Extent (LE)
  • Getting Information about Logical Volumes
  • Adding Additional Space to a Volume Group from the Command-Line
  • Adding Additional Space to a Volume Group using Cockpit

Adding and Managing Swap Space

  • What is Swap Space?
  • Recommended Swap Space for RHEL
  • Identifying Current Swap Space Usage
  • Adding a Swap File to a System
  • Adding Swap as a Partition
  • Adding Space to a LVM Swap Volume
  • Adding Swap Space to the Volume Group

Creating and Managing KVM Virtual Machines

  • Installing KVM Virtualization
  • An Overview of KVM
  • KVM Hardware Requirements
  • Preparing Linux for KVM Virtualization
  • Verifying the KVM Installation
  • Installing the Cockpit Virtual Machines Module
  • Creating a Virtual Machine
  • Installing a small Linux system

Remote Learning

This course is available for "remote" learning and will be available to anyone with access to an internet device with a microphone (this includes most models of computers, tablets). Classes will take place with a "Live" instructor at the date/times listed below.

Upon registration, the instructor will send along additional information about how to log-on and participate in the class.

Refund Policy

Cancellation / Reschedule by Student

Because we must schedule rooms, ship course materials, assign instructors and provision computer resources well in advance, it is important students alert us ASAP with any cancel/reschedule requests.

Please note the following policies:

  • If requested 16 or more calendar days before the class
    • Cancellation requests made in this timeframe are eligible for refund less 5% cancellation fee.
    • Reschedule requests made in this timeframe will be accommodated if availability exists and will be processed at no additional charge.
  • If requested 15 calendar days or less before the class
    • Cancellation or Reschedule requests made by the student 15 calendar days or less before the class starts will be charged 100% the course fee and are not entitled to a refund.

Substitutions

  • If you are unable to attend your class, a substitute who meets the course prerequisites may attend in your place at no additional charge for the original class title, date and location. If you cannot find a substitute, you will be subject to the class cancellation policy.

Make-up Policy

Students are permitted one (1) Make-Up opportunity to attend an instructor-led class that was paid for but not previously attended for no additional charge.

  • Make-Up class registrations are subject to availability and are not entitled to refund.
  • Students may not reschedule a Make-up class registration.
  • Any no shows or cancellations forfeit their one Make-up opportunity.

Additionally, ONLC reserves the right to retire courses due to lack of demand. Retired classes are not available for Make-Up.

In the event that an instructor or the school needs to cancel at the last minute, students will receive a refund less a 5% non-refundable registration fee.

In any event where a customer wants to cancel their enrollment and is eligible for a full refund, a 5% processing fee will be deducted from the refund amount.

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