GL-250

Course Length

5 days

Course Description

This comprehensive course is designed to equip learners with a profound understanding of Linux system administration. The course kicks off with foundational concepts such as the Linux Kernel, device management, and the intricacies of systemd, setting the stage for deeper exploration into system boot processes, including GRUB2 and systemd boot. Each section progresses through detailed topics, including hardware discovery, kernel module configuration, and systemd service management, ensuring participants build a robust foundation in managing and configuring the core aspects of a Linux system.

As the course unfolds, it delves into advanced areas such as software maintenance, local and remote storage administration, user and group management, and the critical aspects of security through Pluggable Authentication Modules (PAM) and comprehensive security administration modules. These sections are crafted to cover the essentials of software management using RPM and DNF, the intricacies of LVM & RAID for storage, and the importance of security in system administration, including SELinux and firewall management. The practical application of these concepts is reinforced through targeted lab tasks, where learners apply knowledge to real-world scenarios, enhancing their problem-solving and system management skills.

The course also addresses the dynamic nature of networking and system maintenance, with chapters dedicated to basic and advanced networking concepts, log file administration, and the pivotal aspects of monitoring and troubleshooting. These sections are crucial for understanding how Linux systems interact within networked environments and how administrators can effectively monitor, diagnose, and resolve system issues. This course is designed not just to impart theoretical knowledge but to foster practical skills and critical thinking, preparing learners for the challenges of Linux system administration in real-world environments.

Prerequisites

Students should already be comfortable working in a Linux or Unix environment. Fundamentals such as the Linux filesystem, process management, and how to edit files will not be covered in class. An understanding of network concepts, and the TCP/IP protocol suite is helpful. These skills are taught in the GL120 "Linux Fundamentals" course.

Audience

• Aspiring System Administrators: Individuals looking to start a career in system administration and seeking a solid foundation in Linux, one of the most popular and widely-used operating systems in server environments.
• IT Professionals: Those already working in IT fields such as network administration, support, or database management who want to expand their skill set to include Linux system administration to enhance their career prospects and job performance.
• Developers: Software developers who wish to gain a deeper understanding of the Linux environment, which can help in optimizing applications, managing development environments, or working more effectively with DevOps practices.
• DevOps Engineers: Professionals in the DevOps space who require a thorough understanding of Linux systems to improve collaboration between development and operations, automate processes, and ensure the reliability and scalability of services.
• Technology Enthusiasts: Tech enthusiasts or hobbyists interested in deepening their knowledge of Linux internals, system management, and administration to manage personal projects, contribute to open source, or simply satisfy their intellectual curiosity.
• Cybersecurity Professionals: Security analysts and professionals who need to understand system administration, particularly in Linux, to better secure and manage their organization's IT infrastructure.

Benefits

• Comprehensive Understanding of Linux Systems: This course offers an in-depth exploration of Linux system administration, particularly focusing on RHEL9, providing students with a broad and detailed understanding of various components, from kernel and device management to advanced networking and security.
• Hands-on Experience: With lab tasks integrated into each chapter, participants gain practical experience by applying theoretical knowledge to real-world scenarios. This hands-on approach enhances problem-solving skills, familiarizes students with common issues they might face, and teaches them how to troubleshoot effectively.
• Career Advancement Opportunities: Proficiency in Linux system administration, especially in widely used distributions like RHEL, is highly sought after in the tech industry. Completing this course equips individuals with the skills needed to manage and maintain Linux systems, opening up numerous opportunities in IT infrastructure, cloud services, cybersecurity, and more.
• Security Expertise: With dedicated modules on security administration and Pluggable Authentication Modules (PAM), learners will develop a strong understanding of security principles, SELinux, firewall management, and security best practices.
• Networking and Storage Management Skills: The course covers essential networking concepts, storage administration, LVM, RAID, and remote storage solutions, which are critical for designing, implementing, and maintaining scalable and reliable infrastructure.

Distributions

Red Hat Enterprise Linux 9

Detailed Course Outline