Linux Administration involves managing and maintaining Linux-based systems, ensuring they operate efficiently and securely. Administrators are responsible for tasks such as installing and configuring software, monitoring system performance, managing user accounts, and ensuring data security. They handle system updates, patch management, and automate routine tasks using shell scripts. Linux administrators also manage file systems, perform backups, troubleshoot issues, and configure network services like DNS, DHCP, and firewalls. Strong knowledge of command-line tools, networking, and security practices is essential for effective Linux system administration.