RHEL 8/CentOS 8 Linux System Administration (RHCSA) Level I

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JOIN THE BEST LINUX SYSTEM (SERVER/DESKTOP) ADMINISTRATION  COURSE FOR NEWBIE LINUX USERS USING RHEL 8/CENTOS 8 LINUX!!

Hi. My name is Mustafa and I’m the author of the ‘RHEL 8/CentOS 8 Linux System Administration (RHCSA) Level I’ course. I started working as a network and computer systems administrator since January 2011. I have a bachelor degree in engineering from Alexandria University, Egypt. After finishing university, I concentrated on learning the Linux system administration. I have many certifications in Linux system administration, network administration, database administration, and some programming languages ‘C, C++, and Python’. I have a large experience in working on Linux using RHEL, CentOS, and Ubuntu Linux distributions. I have a desire to teach others and transfer my experience to them in an easy and simplified way.

The Course 3 Levels will cover all the topics of the Red Hat Certified System Administrator (RHCSA) and Red Hat Certified Engineer (RHCE). The RHCSA will be in 2 Levels and the RHCE will be in 1 Level, using CentOS 8.

This Course is the First Level of the Full RHCSA Course, which will be Divided into Two Levels.

RHEL 8/CentOS 8 Linux System Administration RHCSA Level One Content:

Linux System Administration Intro:

• Linux system administration introduction.

• The Linux system administrator’s major duties.

• The main differences between CentOS and RHEL.

Linux System Administrator Essential Skills which will include:

• VirtualBox Download and Install.

• Creating a CentOS 8 Virtual Machine.

• CentOS 8 Download and Install.

• CentOS 8 installation requirements.

• Using Automatic Storage configuration.

• Using  Custom Storage configuration.

• LVM Partition scheme.

• Adding new mount points ‘partitions’.

• The XFS file system.

• Adjusting the resolution to view a full-resolution CentOS VM on your computer.

• Linux systems basic modes.

• CentOS 8 Graphical user interface.

• Connecting to the system using graphical mode.

• Visual overview of GNOME 3.

• The top bar.

• The system menu in the top bar.

• Activities button overview.

• Starting applications.

• Workspaces.

• Switching between workspaces.

• Launching an application in a separate workspace.

• Launching an application in a new workspace.

• Quickly running a command.

• Application menu.

• Clock and calendar button.

• New Boxes features.

• The System menu.

• Locking the screen.

• Switching users.

• Suspending the computer.

• Powering off the computer.

• Switching between windows.

• The difference between terminal and shell.

• Launching the terminal window.

• The terminal window command prompt.

• Checking your hostname ‘$HOSTNAME’.

• Switching to root user.

• Disconnecting from the system in graphical mode.

• Centos 8 Virtual Consoles.

• The text mode login screen.

• Logging in using a virtual console.

• The tty command.

• The logout command.

• The Shell Basics.

• The bash shell.

• The shell commands basic parts.

• The shell alias.

• Bash builtin commands.

• The external commands.

• The $PATH environmental variable.

• The which command.

• The echo command.

• The env command.

• Changing directories in the PATH variable.

• The export command.

• The environment configuration files.

• The /etc/profile, /etc/bashrc, ~/.bash_profile, and ~/.bashrc files.

• Using /etc/motd and /etc/issue files.

• Shell commands typing rules.

• Quick Start Commands.

• The date command.

• The pwd command.

• The cd command.

• Relative and absolute paths.

• The passwd command.

• The file command.

• The head and tail commands.

• The wc command.

• The cat command.

• The exit command.

• The ls command.

• The history command.

• The exclamation point character ( ! ).

• The Shell Special Keys.

Managing Files from the Command-line which will include:

• The Linux file system hierarchy.

• The Linux file system tree-like structure.

• The most important directories on the Linux system.

• Command-line file management.

• Creating, deleting, copying, and moving files and directories.

• The touch command.

• More options for cd and ls commands.

• Matching File Names Using Path Name Expansion ‘Globbing and Wildcards’.

• The common meta-characters and pattern classes.

• Simple pattern matches using ( ? ).

• Tilde expansion ( ~ ).

• Brace expansion.

• Command substitution.

• Protecting arguments from expansion.

Getting Help in Linux which will include:

• Reading Documentation using man command.

• Sections of the Linux manual.

• Sections containing popular system administration topics.

• Identifying man pages by keyword.

• Navigating man pages.

• Searching for man pages by keyword.

• The apropos command.

• The mandb command.

• Reading Documentation using Info command.

• Reading Documentation using pinfo command.

• The INFOPATH environment variable.

• Reading Documentation in usr/share/doc directory.

• The whatis command.

• The –help option.

• Graphical help.

• The gnome-help command.

• The yelp command.

• The shell built-in commands.

Creating, Viewing, and Editing Text Files in Linux which will include:

• Describing the technical terms of standard input, standard output, and standard error.

• The file descriptors.

• Using the redirection characters to control output to files.

• Output redirection operators.

• Constructing pipelines.

• Using piping to control output to other programs.

• Using the tee command for piping.

• Creating new files and editing existing text files from the shell prompt.

• Navigating within an editor to effectively accomplish editing tasks.

• Using the Vim editor in the basic editing tasks.

• Different ways of launching gedit.

• Basic gedit keystrokes.

• Editing text files with gedit.

• Copying text between graphical windows.

Managing Local Linux Users & Groups which will include:

• What a multi-user system is.

• Using the id command.

• Using the ps command.

• The /etc/passwd file.

• What a group is.

• The /etc/group file.

• The primary groups.

• The supplementary groups.

• What a root user is.

• Switching users with the su command.

• Running commands as root with the sudo command.

• The /etc/sudoers file.

• The group wheel.

• The PolicyKit.

• Managing local users.

• The useradd command.

• The /etc/login.defs file.

• The usermod command.

• The userdel command.

• The id command.

• The passwd command.

• The UID ranges.

• Managing supplementary groups.

• The groupadd command.

• The groupmod command.

• The groupdel command.

• The usermod command.

• Shadow passwords and password policy.

• The /etc/shadow file.

• The authselect command.

• Password aging.

• The chage command.

• Using the date command to calculate a date in the future.

• Restricting access.

• The nologin shell.

Controlling Access to Files with Linux File System Permissions which will include:

• Linux File System Permissions.

• Effects of permissions on files and directories.

• Viewing file/directory permissions and ownership.

• What the Security-Enhanced Linux (SELinux) is?

• Practical examples of controlling permissions and their allowed and denied behaviour.

• Managing File System Permissions from the Command-Line.

• Changing file/directory permissions.

• The Symbolic method keywords.

• The Numeric method.

• Practical examples of controlling permissions using the Symbolic and Numeric methods.

• Changing file/directory user or group ownership.

• The chown command.

• The chgrp command.

• Managing Default Permissions and File Access.

• Special permissions.

• The setuid permission.

• The setgid permission.

• The sticky bit permission.

• Effects of special permissions on files and directories.

• Setting special permissions.

• Default file permissions.

• The umask command.

• And practical examples of using the umask command.

#The course contains two practice test and three quizzes.

#A private Facebook group is available for answering the students’ inquiries regarding the course.

ENROLL NOW AND ENJOY LEARNING THE LINUX FUNDAMENTALS / LINUX ESSENTIAL SKILLS!!

Who this course is for:

• Anyone want to be prepared for the Red hat Certified System Administrator (RHCSA) exam.

• Anyone who wants to start a new career as a professional Linux system administrator.

• Anyone who needs to learn Linux for a personal or business project.

• A newbie Linux user who wants to be professional in using Linux.

• An existing Linux user who wants to increase his knowledge.

• Windows or macOS users who want to switch to Linux.

• Anyone with a desire to learn Linux.

Student testimonials:

• Joseph DcruzUpdated: Instructor was really good and well explained. Valuable information, clear explanations, engaging delivery, helpful practice activities, accurate course description, and knowledgeable instructor.

• Ahmed Salah: Excellent course with an excellent and expert instructor.