Red Hat Certified System Administrator (RHCSA9) - EX-200 Course

Introduction

• Goals and Methods
• Who Should Read This Course?
• How This Course Is Organized
• Exam Objective to Lesson Mapping

Installing Red Hat Enterprise Linux

• Preparing to Install Red Hat Enterprise Linux
• Performing an Installation
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Using Essential Tools

• Basic Shell Skills
• Editing Files with vim
• Understanding the Shell Environment
• Finding Help
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Essential File Management Tools

• Working with the File System Hierarchy
• Managing Files
• Using Links
• Working with Archives and Compressed Files
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Working with Text Files

• Using Common Text File–Related Tools
• A Primer to Using Regular Expressions
• Using grep to Analyze Text
• Working with Other Useful Text Processing Utilities
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Connecting to Red Hat Enterprise Linux 9

• Working on Local Consoles
• Using SSH and Related Utilities
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Labs

User and Group Management

• Understanding Different User Types
• Creating and Managing User Accounts
• Creating and Managing Group Accounts
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Labs

Permissions Management

• Managing File Ownership
• Managing Basic Permissions
• Managing Advanced Permissions
• Setting Default Permissions with umask
• Working with User-Extended Attributes
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Configuring Networking

• Networking Fundamentals
• Managing Network Addresses and Interfaces
• Validating Network Configuration
• Managing Network Configuration with nmtui and nmcli
• Setting Up Hostname and Name Resolution
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing Software

• Managing Software Packages with dnf
• Using dnf
• Managing Package Modules
• Managing Software Packages with rpm
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing Processes

• Introducing Process Management
• Managing Shell Jobs
• Using Common Command-Line Tools for Process Management
• Using top to Manage Processes
• Using tuned to Optimize Performance
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Working with Systemd

• Understanding Systemd
• Managing Units Through Systemd
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Scheduling Tasks

• Understanding Task Scheduling Options in RHEL
• Using Systemd Timers
• Configuring cron to Automate Recurring Tasks
• Configuring at to Schedule Future Tasks
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Configuring Logging

• Understanding System Logging
• Working with systemd-journald
• Configuring rsyslogd
• Rotating Log Files
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing Storage

• Understanding MBR and GPT Partitions
• Managing Partitions and File Systems
• Mounting File Systems
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing Advanced Storage

• Understanding LVM
• Creating LVM Logical Volumes
• Resizing LVM Logical Volumes
• Configuring Stratis
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Labs

Basic Kernel Management

• Understanding the Role of the Linux Kernel
• Working with Kernel Modules
• Upgrading the Linux Kernel
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing and Understanding the Boot Procedure

• Managing Systemd Targets
• Working with GRUB 2
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Labs

Essential Troubleshooting Skills

• Understanding the RHEL 9 Boot Procedure
• Passing Kernel Boot Arguments
• Using a Rescue Disk
• Fixing Common Issues
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

An Introduction to Automation with Bash Shell Scripting

• Understanding Shell Scripting Core Elements
• Using Variables and Input
• Using Conditional Loops
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Configuring SSH

• Hardening the SSH Server
• Using Other Useful sshd Options
• Configuring Key-Based Authentication with Passphrases
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing Apache HTTP Services

• Configuring a Basic Apache Server
• Understanding Apache Configuration Files
• Creating Apache Virtual Hosts
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing SELinux

• Understanding SELinux Working Modes
• Understanding Context Settings and the Policy
• Restoring Default File Contexts
• Managing Port Access
• Using Boolean Settings to Modify SELinux Settings
• Diagnosing and Addressing SELinux Policy Violations
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Configuring a Firewall

• Understanding Linux Firewalling
• Working with Firewalld
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Accessing Network Storage

• Using NFS Services
• Mounting Remote File Systems Through fstab
• Using Automount to Mount Remote File Systems
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Configuring Time Services

• Understanding Local Time
• Using Network Time Protocol
• Managing Time on Red Hat Enterprise Linux
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Managing Containers

• Understanding Containers
• Running a Container
• Working with Container Images
• Managing Containers
• Managing Container Storage
• Running Containers as Systemd Services
• Summary
• Review All Key Topics
• Review Questions
• End-of-Lesson Lab

Final Preparation

• General Tips

Theoretical Pre-Assessment Exam