Linux Administration
I. Linux Fundamentals
1. What is Linux and Why It Matters
2. Linux Distributions Overview
3. Linux File System Structure
4. Basic Linux Commands
5. Working with Files and Directories
6. File Permissions and Ownership
7. Users and Groups Basics
8. Linux Editors (vi, nano)
9. Linux Help and Documentation
10. Linux Best Practices for Beginners
II. User, Process & Package Management
11. User and Group Management
12. Password Policies and Aging
13. Package Management
14. System Services and systemd
15. Process Management
16. Job Scheduling (cron, at)
17. Environment Variables
18. Disk Partitioning and Mounting
19. File System Types
20. Disk Usage and Cleanup
21. Log Files and Log Rotation
22. Monitoring System Resources
23. Managing Software Repositories
24. Linux Boot Process
25. Linux Administration Best Practices
III. Networking, Security & Storage
26. Linux Networking Basics
27. Network Configuration & Troubleshooting
28. SSH and Secure Access
29. Firewall Management
30. SELinux Basics
31. Linux Security Best Practices
32. File Sharing (NFS, Samba)
33. Storage Concepts (LVM)
34. Backup and Restore Strategies
35. Time Synchronization
36. Kernel Basics
37. Kernel Parameters and Tuning
38. Performance Monitoring Tools
39. System Troubleshooting Methodology
40. Linux Hardening Checklist
IV. Advanced Linux & Real-World