Introduction to Networking & OS Concepts
By sachin@hackzox.com
Categories: Networking & Operating Systems Security
About Course
This foundational course introduces learners to the core concepts of computer networking and operating systems, providing the base required for understanding cybersecurity. You’ll explore how networks work, how data travels, what protocols are used, and how operating systems manage resources and security. The course blends theory with live demonstrations to help students understand both the network infrastructure and the OS-level processes that keep systems running securely.
What Will You Learn?
- Understand how computer networks operate
- Learn how data moves across systems using protocols
- Explore the structure and working of operating systems
- Identify common network and OS vulnerabilities
- Practice using network and OS commands
- Build a strong base for advanced cybersecurity learning
Course Content
Introduction to Networking
What is a network?
Types of networks (LAN, WAN, MAN, PAN)
Understanding topology (Bus, Star, Ring, Mesh)
Network devices: router, switch, hub, access point
How Data Travels Across Networks
Data packets and encapsulation
OSI Model overview (7 layers explained simply)
TCP/IP model and comparison with OSI
Understanding IP addressing and MAC addresses
Common Networking Protocols
HTTP/HTTPS, FTP, DNS, DHCP, SMTP, SSH explained
The role of ports and firewalls in communication
Ping, Traceroute, and basic troubleshooting commands
Basics of Operating Systems
What is an OS and its functions
Types of operating systems (Windows, Linux, macOS)
System components: kernel, shell, and file system
How OS manages processes, memory, and storage
Windows Operating System Concepts
Windows architecture overview
File management, user accounts, and permissions
Task Manager, Services, and Registry basics
Command Prompt & PowerShell intro
Linux Operating System Basics
Linux directory structure and commands
File permissions (r, w, x) and ownership
Package management and system updates
Using the terminal for system monitoring
OS & Network Interaction
How OS uses networking protocols
Network configuration files in Windows & Linux
Checking connections and troubleshooting network issues
Secure communication between systems
Security Introduction in Networks & OS
Common vulnerabilities in OS and networks
Importance of updates and patches
Basic security tools and configuration practices
Hands-on Lab Session
Checking IP configuration
Pinging other devices
Creating user accounts and setting permissions
Navigating Linux file system
Course Summary & Quiz
Recap of key concepts
Real-world applications of networking & OS
Quiz and assignment overview
Certificate & next course recommendation
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