# Cloud Networking Fundamentals

> Master cloud networking concepts including VPCs, subnets, routing tables, and security groups across AWS and Azure environments.

Canonical: https://codelivly.com/rooms/cloud-networking-fundamentals
Last updated: 2026-09-04

| | |
|---|---|
| Level | Intermediate |
| Category | Networking |
| Lessons | 5 |
| Estimated time | 30 min |
| XP | 200 |

Cloud networking is the backbone of modern enterprise infrastructure, replacing traditional physical networks with software-defined virtual architectures. This module explores the core components of cloud networking, including Virtual Private Clouds (VPCs), subnets, route tables, Internet Gateways, NAT Gateways, and Security Groups. You will learn how these components interact to provide secure, scalable, and highly available network topologies. From a cybersecurity perspective, misconfigured cloud networks are a leading cause of data breaches. You will discover how attackers exploit overly permissive security groups, public-facing subnets, and routing misconfigurations to access sensitive resources, and how to implement defensive controls like network segmentation, strict egress filtering, and VPC flow logs to harden your cloud environment.

## Lessons

1. What Is Cloud Networking and Why Does It Matter (30 min)
2. Virtual Private Clouds (VPCs) & Subnetting in the Cloud (30 min)
3. Cloud Peering, Transit Gateways & Direct Connect (30 min)
4. Hybrid Cloud Connectivity (30 min)
5. Guided Lab: Designing a Hybrid On-Prem-to-Cloud Network (30 min)

## Related

- [Learning path: WAN, VPN and Cloud Networking](https://codelivly.com/learning-paths/wan-vpn-and-cloud-networking)
- [All rooms](https://codelivly.com/rooms)