Complete Linux Zero to Hero Course

Complete Linux Zero to Hero Course with Practical Sessions. Keep Learning!

Course Requirements:

1. Laptop (with admin privileges)
2. Desire to Learn.

1. Introduction to Linux

• What is Linux?
  • History and overview of Linux distributions (Ubuntu, Red Hat, CentOS).
• Installing Linux
  • Set up Linux on a virtual machine using Vagrant.
• Basic Linux Commands
  • Navigating the file system: ls, cd, pwd
  • File management: cp, mv, rm, touch

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2. Linux File System

• Directory Structure
  • Understanding Linux file system (/, /home, /etc, /var).
• File Permissions
  • Managing permissions with chmod, chown, chgrp.
• Disk Management
  • Using df, du, fdisk, mkfs for managing disks and partitions.
• LVM Management
  • Using pvcreate, vgcreate, lvcreate to create logical volumes for File Systems

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3. User and Group Management

• User and Group Management
  • Create and modify users (useradd, passwd) and groups (groupadd).
• Permissions and Ownership
  • Set file permissions and ownership for users/groups using chmod, chown.

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4. Package Management

• Installing Packages
  • Using package managers: apt (Ubuntu), yum/dnf (Red Hat/CentOS).
• Updating and Removing Packages
  • Manage package updates and removal: apt-get, yum, rpm.

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5. Process Management

• Viewing Processes
  • Monitor processes using ps, top, htop, pgrep.
• Managing Processes
  • Manage processes with kill, killall, pkill, nice, renice.

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6. Service Management

• Starting and Stopping Services
  • Use systemctl, service to manage services.
• Managing Services at Boot
  • Enable/disable services to start at boot time with systemctl.

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7. Networking Basics

• Network Configuration
  • Use ifconfig, ip, ping, netstat, traceroute to configure and troubleshoot networks.
• Configuring Static IPs, DNS, and Routing
  • Edit network config files for static IP and DNS settings.
• Firewalls
  • Basic firewall setup using ufw, firewalld, or iptables.

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8. Scripting and Automation

• Shell Scripting Basics
  • Learn to write basic shell scripts (Bash), with variables, loops, and conditionals.
• Text Processing
  • Use tools like grep, sed, awk, cut, sort for text manipulation and automation.

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9. Security and Hardening

• Securing SSH
  • Configure SSH for secure access with key-based authentication.
• System Hardening
  • Apply hardening practices using iptables, fail2ban, and SELinux/AppArmor for security.

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10. Troubleshooting and System Maintenance

• System Logs
  • Check logs (journalctl, /var/log) for system diagnostics.
• System Diagnostics
  • Troubleshoot performance using dmesg, top, htop, vmstat.
• Backup and Recovery
  • Use rsync, tar for backups and cron for scheduling.

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11. Advanced Topics

• Automation with Ansible
  • Learn how to automate system administration tasks using Ansible.
• Docker
  • Introduction to Docker and containers for application deployment.

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12. Final Project

• Real-World Project
  • Set up a multi-server Linux environment, configure services, secure the system, and automate tasks.

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Summary of Learning Path

1. Start with basics: Learn Linux commands, file system, and basic user management.
2. Move to management: Focus on package, process, and service management.
3. Learn networking: Understand IPs, DNS, and firewall configurations.
4. Advance to scripting and security: Automate tasks with scripting, harden security.
5. Troubleshoot and maintain: Learn system diagnostics, backups, and recovery.
6. Explore advanced topics: Learn Ansible and Docker.
7. Complete the project: Apply knowledge in a real-world project.

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Certification & Exam Prep

• Prepare for: CompTIA Linux+, RHCSA, RHCE
• Practice: Tests, quizzes, and hands-on labs.

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Conclusion and Next Steps

• Recap and Key Takeaways
• Advanced Linux Topics: Kernel tuning, advanced networking, automation, etc.
• Real-World Application: Hands-on experience and industry best practices
• Further Learning Resources: Books, online communities, and certifications