Demonstrate Essential Linux commands, file handling, and permission management

Welcome!

You are a Network Security Intern at SkyLink Networks, where you are learning essential Linux skills using Kali Linux. Your task is to perform file and directory operations, navigate the system using Linux commands, and manage file permissions and ownership. By practicing real commands and modifying access controls, you build a strong foundation for secure system management and ethical hacking tasks.

Topic : Linux Commands

1) Basic Linux commands (ls, cd, pwd, mkdir, rm, cp, mv).

2) File permissions and ownership.

Switch to Root User & Check Current Directory

Open terminal

Run:

You should see /home/kali

List Files in Home Directory

Run:

Observe folders like:  Desktop, Documents, Downloads, Music, etc.

View Hidden Files & Detailed Info

Run:

Observe hidden files (starting with . like .bashrc, .config)

Goal: Understand hidden/system files

Use Advanced Listing Options

Run:

Navigate Between Directories

Run:

Try wrong command:

ls _R (Goal: Learn correct vs incorrect command usage)

Goal: Practice navigation (absolute & relative paths)

Use Shortcut Navigation

Run:

Create a Project Directory

Run:

Goal: Create and enter working directory

Create Multiple Folders

Run:

Goal: Organize folders for lab structure

Create Multiple Directories (Bulk)

Run:

Create Files

Run:

Goal: Create single & multiple files

Create Files Inside Folders

Run:

Create Tool & Log Files

Run:

Create Tool & Log Files

Edit & View File Content

Run:

Add text like: hello Hackers

Goal: Create and read file content

Copy Files

Run:

Move Files

Run:

Delete Directories

Run:

Create Files in Specific Directories

Run:

Goal: Create files inside specific folders without entering them

View Detailed File Information

Run:

Observe:

• File permissions (-rw-r--r--)

• Owner (root)

• File size & date

Goal: Understand file metadata

Remove Write Permission

Run:

Check:

Goal: Modify file permissions (remove write access)

Navigate into Reports Folder

Run:

Goal: Verify file permission changes

Understand Numeric Permissions

Run:

Result:

• Execute only (--x--x--x)

Goal: Learn numeric permission system

Change Permissions Again

Run:

Result:

• Write only (-w--w--w-)

Goal: Practice permission variations

• This is the Windows Event Viewer showing logs under Windows Logs → Application.

• It displays events like Information, Warning, and Error with details such as date, source, and Event ID.

• The bottom pane shows detailed information for a selected event (Event ID 16384 – Security-SPP service).

Now go to Application

Great job!
You have successfully completed your lab on Advanced Windows Tasks and System Security Monitoring.

In this lab, you have: Managed and controlled Windows background services, Automated tasks using Task Scheduler, Created and analyzed Registry persistence mechanisms, Investigated Event Viewer logs, and monitored important Windows security operations.

You are now ready to move to the next stage of Windows administration and security management.

Topic : Linux & Kali Linux Environment

1) Introduction to Kali Linux and Installation using VirtualBox/VMware

2) Understanding the Kali Linux environment

3) Linux file system structure