What a VPC Is and How Cloud Networking Actually Works, Explained Simply

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A Virtual Private Cloud (VPC) is an isolated private network within a cloud provider's infrastructure, acting as a controlled boundary for all resources a user deploys. Inside a VPC, the address space is divided into public subnets, which face the internet, and private subnets, which host databases and application servers away from direct external access. Traffic flow is managed through route tables, internet gateways, NAT gateways, and security groups, each serving a distinct role in controlling inbound and outbound connections. This layered architecture ensures that only a load balancer is publicly exposed, while app servers and databases remain reachable solely through defined internal paths. The same core concepts apply across major cloud providers including AWS, Azure, and Google Cloud Platform, differing only in terminology.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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