Linux Administration and Supercharge Your Career

Master installing and updating software with yum, including wget, zip, unzip, and nano, using dependency checks, repository searches, and signing key verification.

Learn how to disable SELinux safely using setenforce 0 to enter permissive mode. Configure /etc/selinux/config to disable on boot, and remember to re-enable for proper security.

Learn to configure firewalld by managing zones, opening port 80 or http service, and making rules permanent across reboots, then verify and adjust with restart.

Learn to set up and configure an Apache web server, deploy site files, adjust directory index, manage ownership, and verify SELinux contexts for secure hosting.

Edit /etc/fstab to auto-mount a smb share at startup by defining the remote path, local mount point, filesystem type, and credentials, then reboot to verify.

Install and configure the desktop environment by downloading about 600 megabytes plus 1.8 gigabytes of software, restart the computer, accept the license, and explore the graphical user interface.

Explore timing techniques for linux commands, comparing built-in versus new process approaches, measuring execution time, and analyzing outputs to optimize command performance.

Learn to use the top command to monitor cpu usage, identify multi-threaded processes, view threads, and interpret cpu percentages and process ids.

Learn to use sar for cpu monitoring, gathering live and historical utilization data (cpu, memory, disk), and analyze intervals to diagnose slowdowns and workload patterns.

Explore how the Linux kernel scheduler assigns CPU time across tasks using scheduling classes, real-time and nice values, and time slices to balance priorities.