Linux Red Hat 9 Administration Essentials

Overview This 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 class 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