
Engage with the instructor by texting or emailing questions during the 3 days Linux administration course, and understand Udemy's early rating prompt with a skip option until course end.
Define what an operating system is and how it manages hardware and software resources and provides services. Identify operating system types—desktop, server, mobile, embedded, real-time—with examples like Windows, macOS, Linux.
Linux is an operating system that sits between hardware and users, translating commands into hardware actions; from booting from installation media to configuring partitions, users, and peripherals.
Explore Linux distributions, including Red Hat, CentOS, Fedora, SUSE, Debian, and Ubuntu. CentOS is presented as the free, Red Hat–based option with no official Red Hat support.
Install Oracle VirtualBox, a free open source hypervisor, to run multiple operating systems on a single hardware host, such as CentOS, on Windows, Mac, or Linux.
If your Virtual Box only showing 32 bit =
http://www.fixedbyvonnie.com/2014/11/virtualbox-showing-32-bit-guest-versions-64-bit-host-os/
Help to release mouse capture in virtualBox. Press one key by itself: *The [CTRL] key on the right hand side of the keyboard
Download and install putty, create a desktop shortcut, and connect to a Linux machine by entering its IP address with port 22.
Explore how the Linux file system uses a root slash to organize data into a hierarchy of files and directories, and how this compares to Windows drive layouts.
Explore the Linux file system structure, focusing on /bin, /boot, /etc, /lib, /root, /proc, /tmp, /home, and /var, and how each directory supports commands, boot, configurations, libraries, processes, and logs.
Learn how to navigate the Linux file system using cd, pwd, and ls, including changing directories, printing your current location, and listing directory contents from root to subdirectories.
Learn how to locate files and directories in Linux using find and locate, including starting from the current directory or root, handling permissions with sudo, and practical search examples.
Explore file display commands in Linux, including cat, more, less, head, and tail, and learn how to view entire files, page by page, or by specific top or bottom lines.
Master essential Linux system monitoring commands to assess performance and resource usage, including top, df, dmesg, iostat, netstat, free, cpu info, and memory information.
Use uname -a, cat /etc/redhat-release, and cat /etc/*rel* along with dmidecode to identify the operating system, kernel, and hardware. Understand why checking the hostname matters before rebooting.
Master terminal control keys in Linux by using ctrl+c, ctrl+u, ctrl+z, and ctrl+d to erase, stop, suspend, or exit interactive programs.
Learn how the Linux kernel interfaces hardware and software, acting as the core program inside the operating system that executes shell commands and enables applications to run.
Learn to work with /etc files like nsswitch.conf, hosts, resolv.conf, and network scripts, assign static or DHCP IPs, and use ping, ifconfig, netstat, and tcpdump.
Explore how yum installs packages from defined repositories and how rpm handles local package installs. Compare their internet needs, dependencies, and basic verification and removal tasks.
Learn linux system run levels from 0 to 6, including power off, single user, multiuser with or without networking, and gui; practice init commands and check with who -r.
In linux, use trace route to map the journey of a packet from source to destination, revealing each hop through gateways and DNS servers and helping troubleshoot network issues.
Explore Linux's future across cloud and servers, machine learning and AI, enterprise adoption, security, edge computing, and open source development.
Learn how virtualization creates software-based representations of servers and networks, enables multiple operating systems under a hypervisor, and uses VMs, virtual desktops, snapshots, and cloning.
Explore VMware virtualization and cloud computing with ESXi, vSphere, and vCenter. Learn to create clusters of ESXi hosts, manage virtual machines, templates, storage, and networking.
Master download, installation, and configuration of VMware Workstation Player to run multiple operating systems, including Windows 64-bit and Linux 64-bit, via the setup wizard and GUI.
create and configure a virtual machine in VMware Workstation by attaching a CentOS ISO, selecting hardware options, and booting from the installer to complete the Linux installation.
Install oracle guest additions on a linux vm by updating the kernel and installing gcc, kernel-devel, dkms, and enabling mouse integration; then mount the guest additions cd and run installer.
Troubleshoot change directory issues by verifying the directory exists, using correct case, distinguishing absolute vs relative paths, and confirming directory execute permissions and hidden directories.
Identify why an IP address is assigned but not reachable by verifying the correct interface with ifconfig, checking the gateway and VLAN, then ping the gateway.
This course is designed for those students who do not have enough time to learn Linux. They want to be able to do Linux installation and manage the Linux server by running commands in 3 days. Spend a few hours with me everyday for the next 3 days and I will make sure you will learn the following:
In 3 Days Linux Administration Course, you will quickly gain practical skills for Linux installation, configuration, and server management. Each day is structured to maximize your learning experience, covering key topics such as user management, file permissions, package management, and network configuration. You’ll engage in hands-on exercises that reinforce your understanding and enable you to run essential Linux commands confidently.
Day 1 – Installation, Configuration, File System and Basic Commands
Understanding of Linux?
What is Oracle Virtual Box?
Downloading and Installing Oracle Virtual Box
Creating virtual machine
Linux Distributions
Downloading and Installing Linux (CentOS)
Download and install Putty
Connect Linux VM via Putty
Changing Password
Introduction to File System
File system structure description
File system navigation commands
Directory listing overview
Creating Files and Directories
File system paths
Finding Files and Directories (find, locate)
Wildcard (*, $, ^)
Quiz and Handouts
Day 2 – Linux System Administration
File Permissions (chmod)
File Ownership (chown, chgrp)
Getting Help (man, whatis etc.)
Adding text to file
Pipes ( | )
File Maintenance Commands
File Display Commands
Filters / Text Processing Commands (cut, sort, grep, awk, uniq, wc)
Compare Files (diff, cmp)
Compress and un-compress files/directories (tar, gzip, gunzip)
Linux File Editors (vi text editor)
User account management (useradd, groupadd, usermod, userdel, groupdel)
Switch users and Sudo access
Monitor users (who, id, last)
System utility commands (date, uptime, hostname, which, cal, bc etc.)
Quiz and Handouts
Day 3 – Advance Linux System Administration
Processes and schedules (systemctl, ps, top, kill, crontab and at)
System Monitoring Commands (top, df, dmesg, iostat 1, netstat, free etc.)
OS Maintenance Commands (shutdown, reboot, halt, init etc.)
Changing System Hostname (hostnamectl)
Finding System Information (uname, cat /etc/redhat-release, cat /etc/*rel*, dmidecode)
Terminal control keys
Linux Kernel
What is Shell?
Shell scripting
Basic Shell scripts
Aliases
Command history
Enabling Internet in Linux VM
Network Files and Commands (ping, ifconfig, netstat, tcpdump, networking config files)
Network Interface (ethtool)
System Updates and Repositories (rpm and yum)
System Upgrade and Path Management
System Run Levels
File transfer (ftp, scp, rsync etc.)
Message of the Day
Disk Partition (df, fdisk, etc.)
Quiz and Handouts
Here is the testimonial from my students:
To all of you that are looking for a REALLY GOOD LINUX course, THIS IS IT, SERIOUSLY I promise you won't find a course on LINUX here that is THIS GOOD. -- T.J. Marstiller (Udemy Student)
Imran is a very knowledgeable and engaging instructor. As others have said, you can tell that he is not just trying to sell a course, but that he is invested in giving his students a strong career foundation with a positive and approachable attitude. He is also entertaining with his use of pop culture and practical work examples. It really feels like you're in a classroom with him. I'm taking this course mainly as a hobbyist, but got a lot from it already. The homework assignments, quizzes, and handouts help reinforce the material. -- Raymond B. (Udemy Student)
Main thing about course is its simplicity and the hierarchy. Design is very good and easy which helps to understand things better. -- Akash Garg (Udemy Student)
I just love the teaching ad the learning experience I am getting -- Jacob Samba (Udemy Student)
Imran Afzal might be my favorite teacher I've EVER had. He is funny, and engaging. The course was easy to follow, and with no experience starting I am now extremely comfortable with Linux, and actually really like it. He does make you do your googles, but this is not a bad thing especially considering the nature of IT and documentation to solve your own problems. I highly recommend. -- Vanessa Diaz-Goumond (Udemy Student)
The course is run very well and I really like the handouts and the homework that is assigned. The homework helps me learn and continue with the learning process even when adult life is still progressing forward. -- Thomas Rogers (Udemy Student)
Such an amazing instructor. Imran must have put in a lot of effort in structuring the course and taking the student step by step, he takes his time in explaining everything, from what Linux is, how to down load it, coding, etc. I have taken other courses from Imran. I am a student for life. Keep it up and please keep preparing more courses for please like us who can benefit from your way of teaching, knowledge and experience. Thank you. -- Ali Shiekh (Udemy Student)
In the first place I say a big thank you to the instructor for making such a great course. I was afraid to learn Linux. I now feel very comfortable with Linux. I have understood both the concept behind and the practical as well. I would recommend every one who is NEW to Linux and wants to grab it once and for all without wasting time to go ahead and ENROLL. You will not regret it. I would like the instructor to do same for WINDOWS SERVER ADMIN., I don't seem to find any better and beginner oriented course out there that could be matched with this course. To me, it is the BEST Linux Course on Online. I just started some real world projects with Linux after this great course, I was new to Linux and in just a month I am on the command line always playing. -- Opoku Bright (Udemy Student)
I genuinely look forward to additional courses in the future. This has been so informative. You hear the name oracle all the time, but this was well put in layman’s terms -- Atoofa Hasan (Classroom Student)
Imran Afzal eats, breathes and sleeps Linux! He really knows his stuff. I feel like he has brought me from a novice level education to masters level in a short time period. Anyone who is looking to get a job in Linux should definitely take this course. -- TJ Walker (Udemy Student)