Unix
1. Creating Groups in Unix Using groupadd?
2. Fail2ban and Brute Force Protection in UNIX/Linux
3. What is Job Control?
4. Foreground Processes
5. That is where ps, top, and htop come in.
6. What Is a Process in Unix?
7. User Resource Limits in Unix/Linux (ulimit)
8. Creating Groups in Unix Using groupadd?
9. User Login Shell in Unix/Linux
10. Password Policies in Unix Using passwd?
11. Intrusion Detection Basics
12. Creating Users in Unix Using useradd?
13. Piping and Filters in Unix/Linux
14. Functions in Shell Scripts
15. Hard Links vs Soft Links in Unix
16. Inode Concept in UNIX/Linux
17. Systemd Unit File Structure
18. Systemd vs. SysV Init (Modern UNIX Variants)
19. Runlevels in UNIX (SysV init)
20. UNIX Boot Process Explained
21. UNIX File Permission Calculation Using Numeric and Symbolic Methods
22. How Cron Jobs Work Internally in UNIX Systems
23. Signal Handling in UNIX and Common Signalsi
24. Foreground and Background Process Management in UNIX
25. Environment Variables vs Shell Variables in UNIX
26. Environment Variables vs Shell Variables in UNIX
27. UNIX Boot Process Explained Step by Step
28. UNIX Process States Explained
29. UNIX Inode Structure and Its Role in File Systems
30. Difference Between Hard Link and Soft Link in UNIX
31. Text Processing Tools in Unix
32. Interview Troubleshooting Questions
33. Troubleshooting Scenarios
34. Logrotate vs Journalctl Rotation
35. Manual vs Automatic Log Rotation
36. Log Rotation in UNIX/Linux
37. System Logging in UNIX/Linux
38. Auditing in UNIX/Linux (auditd)
39. User Session Monitoring in UNIX/Linux
40. Regular Expressions
41. UNIX Commands
42. Passwords
43. Getting Started
44. Introduction to Unix
45. Decision Making
46. System Logging
47. Signals and Traps
48. User Administration
49. System Performance
50. UNIX Commands
51. Loop Control
52. Shell Loops
53. Basic Operators
54. Using Arrays
55. Special Variables
56. Shell Variables
57. What is Shell ?
58. Shell Programming
59. permissions in UNIX.
60. User & Group Management in Unix
61. Scheduling in Unix
62. Process Management in Unix
63. difference between Multithreading and Multiprocessing in UNIX/Linux.
64. threads in UNIX.
65. Process in UNIX
66. System Calls in UNIX
67. UNIX File System
68. UNIX shell
69. Shell Input Output Redirections
70. Disadvantages of UNIX
71. Advantages of UNIX
72. Features of UNIX
73. kernel in unix
74. Piping Commands
75. Miscellaneous Commands
76. UNIX File Management
77. The UNIX Filing System