This course provided hands-on experience with essential Linux system administration skills that are critical for cybersecurity. I progressed from basic VM setup and command-line navigation to advanced topics like user/group management, file permissions, shell scripting, storage configuration, networking, and task automation. My technical abilities improved significantly across multiple areas. Early labs taught me core commands (pwd, cd, ls, vi) and file system navigation. Later assignments built on this foundation with user account creation (useradd), permission management (chmod, chown, SGID), scripting (conditional statements, tar backups, crontab), and network troubleshooting (ifconfig, route, netstat). The most difficult concepts were vi editor modes, special permissions (SGID), and subnetting calculations, which required repeated practice. This course directly supports my cybersecurity career goals at Old Dominion University. Linux proficiency is foundational for security tools, penetration testing, digital forensics, and system hardening. This course transformed my command-line abilities from beginner to intermediate level. The systematic lab progression created a strong foundation for advanced cybersecurity coursework and real-world IT/security roles.