Networking
Curriculum
NET 101 · Complete Networking (Beginner to Pro)

Networking Tutorial

A complete beginner-to-pro networking guide covering IP, DNS, transport, routing, security, observability, and production-grade architecture decisions.

15 lessonsBeginner → ProInfrastructure
Start from the beginning

Curriculum

Work through each section in order. Every lesson ends with practice and key points so the idea sticks.

Beginner

Foundations

2 lessons · ~30 min
  1. 1
    What is a Network?

    Understand devices, links, and why networking matters.

  2. 2
    OSI vs TCP/IP Models

    Map networking concepts into practical layers.

Beginner

Addressing

2 lessons · ~34 min
  1. 3
    IP Addressing and Subnet Basics

    Read IPv4 addresses, CIDR, and subnet boundaries.

  2. 4
    DNS and Name Resolution

    Translate names to IPs and diagnose lookup issues.

Beginner

Transport Basics

1 lessons · ~18 min
  1. 5
    TCP, UDP, and Ports

    Choose transport protocols and inspect sockets.

Intermediate

LAN Engineering

2 lessons · ~39 min
  1. 6
    Switching, VLANs, and Trunks

    Segment L2 domains and carry multiple VLANs safely.

  2. 7
    Routing: Static and Dynamic

    Decide when to use static routes and dynamic protocols.

Intermediate

Security Controls

1 lessons · ~22 min
  1. 8
    NAT, Firewalls, and ACLs

    Control ingress/egress while preserving app connectivity.

Intermediate

Application Delivery

1 lessons · ~20 min
  1. 9
    Load Balancing and Reverse Proxy

    Scale service endpoints and terminate TLS cleanly.

Intermediate

Operations

1 lessons · ~22 min
  1. 10
    Network Observability Tools

    Use ping, traceroute, tcpdump, and Wireshark intentionally.

Advanced

Internet Edge

1 lessons · ~24 min
  1. 11
    BGP Fundamentals and Policy

    Understand path selection and policy-driven routing.

Advanced

Security Architecture

2 lessons · ~45 min
  1. 12
    VPN Architecture and Zero Trust

    Secure remote access with identity-first design.

  2. 13
    DDoS Resilience and Rate Limiting

    Build layered defenses for volumetric and app attacks.

Advanced

Distributed Infrastructure

1 lessons · ~24 min
  1. 14
    SD-WAN and Multi-Region Design

    Connect campuses and clouds with policy-aware routing.

Advanced

Capstone

1 lessons · ~28 min
  1. 15
    Capstone: Design and Troubleshoot a Campus Network

    Apply end-to-end networking from architecture to incident response.