Complete Networking Tutorial for Beginners to Advanced 2026 | Deep dive for Cyber security

Welcome to Sheryians Cyber School!

This is the Complete Networking Tutorial 2026, designed for absolute beginners to advanced learners who want to master real-world computer networks.

In this video, we cover everything: what networking is, how data travels, the OSI & TCP/IP models, IP addressing, subnetting, ports & protocols, routing & switching, DNS, DHCP, NAT, firewalls, packets, and hands-on analysis tools like Wireshark.

Whether you’re preparing for cybersecurity, ethical hacking, cloud, or IT roles, this tutorial gives you the full foundation you need to understand how the internet works at a deep level. Learn step-by-step and become network-ready for your cybersecurity journey.

⏱️ Timestamps
00:00 - Introduction & Roadmap
01:30 - What is Networking?
02:06 - Why Learn Networking? (Attack & Defense)
04:55 - History of Networking (ARPANET)
06:45 - Types of Networks (LAN, MAN, WAN, PAN)
08:44 - Performance Terms (Latency, Bandwidth, Throughput, Jitter)
09:39 - Network Topologies (Star, Bus, Ring, Mesh)
12:16 - Client-Server vs. Peer-to-Peer Architecture
12:53 - OSI Model
14:40 - Encapsulation & Decapsulation
15:23 - TCP/IP Model (4-Layer Model)
16:35 - Types of Cables (Copper vs. Fiber vs. Aux)
19:00 - Transceivers & Connectors (RJ45, SFP)
20:32 - Link Speed & PoE (Power Over Ethernet)
21:30 - Cabling Standards (Cat5 vs. Cat6)
24:50 - Ethernet Frames (Source MAC, Destination MAC, Payload)
26:19 - Switching Logic (CAM Tables, Learning, Flooding)
29:09 - Spanning Tree Protocol (STP)
29:43 - VLANs (Virtual Local Area Networks) & 802.1Q Tagging
31:57 - Collision & Broadcast Domains
32:38 - IP Addressing & Subnetting
40:45 - Classes of IP Address (A, B, C, D, E)
44:09 - IP Header Fields
44:45 - Address Resolution Protocol (ARP) & Link Resolution
48:11 - ARP Spoofing
49:51 - Networking Devices (Hub, Switch, Router, Bridge, Cable Tester, Crimping tool)
55:05 - Managed, Unmanaged Switch & Layer 2, Layer 3 Devices
56:44 - Access vs Trunk Ports
59:40 - Router Basics & Packet Forwarding (NAT, PAT, address translation)
01:03:19 - Routing Fundamentals
01:05:00 - Static & Dynamic Routing
01:06:42 - Route Metrics & Administrative Distance
01:09:30 - Interior Routing Protocol & Enhanced Interior Gateway Routing Protocol (EIGRP)
01:17:00 - IS-IS (Intermediate System to Intermediate System)
01:18:31 - BGP (Border Gateway Protocol)
01:26:10 - Packet Delivery & Fragmentation
01:28:14 - TTL (Time To Live), MTU (Maximum Transmission Unit), Header Fields
01:29:33 - ICMP (Ping, Traceroute)
01:32:19 - Firewall Traversal
01:32:33 - Network Segmentation & Isolation
01:33:56 - MPLS (Multiprotocol Label Switching)
01:35:24 - Label Switching & Forwarding
01:36:27 - Key Components (LSR, LER, PE, CE)
01:37:45 - Segment Routing (SR-MPLS, SRv6)
01:39:49 - Unicast, Multicast, Broadcast
01:42:01 - Transport Layer TCP & UDP (Sequence Numbers, ACKs, Sliding Window)
01:45:22 - Congestion Control
01:46:21 - UDP
01:47:35 - Port Numbers & Multiplexing
01:49:26 - QoS (Quality of Service) Objectives (DiffServ, IntServ)
01:52:18 - Traffic Engineering in large Networks
01:53:36 - VPNs & IPSec
02:05:20 - SSL, TLS
02:07:18 - Tunneling Flow with Encryption
02:09:03 - Data Center Networking
02:10:28 - Spine-Leaf vs Three Tier Architecture & East-West vs North-South Traffic
02:19:53 - Microsegmentation
02:22:25 - Overlay in DCNs (VXLAN, EVPN)
02:26:20 - Virtual Networking Concepts
02:27:35 - VPC/VNet, Subnets, Route Tables
02:29:18 - Security Groups, NACLs
02:31:08 - Hybrid Connectivity, VPN Gateways
02:33:05 - Network Programmability & Automation
02:33:56 - Why Automation is Transforming Networking
02:35:42 - APIs & Network Communication, gNMI (gRPC Network Management Interface)
02:39:25 - Infrastructure as Code (IaC)
02:42:08 - Summary
02:43:12 - Outro

We are creating a playlist for Cyber Security Mastery: Beginner to Advanced
https://www.youtube.com/playli....st?list=PLiqfJrRIkP2


Notes-https://www.notion.so/Networki....ng-for-Cyber-Securit



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