midDevOps
What is a VPC (Virtual Private Cloud)?
Updated Apr 28, 2026
Short answer
A VPC is a logically isolated section of a cloud environment where you can launch resources in a virtual network you define.
Deep explanation
It provides complete control over networking, including IP address ranges, subnets, route tables, and network gateways. A typical setup involves Public Subnets (routing to an Internet Gateway) for Load Balancers, and Private Subnets (no direct internet access) for Databases and Application servers.
Real-world example
Creating a secure cloud architecture where backend databases are placed in private subnets, unreachable from the public internet.
Common mistakes
- Placing all EC2 instances in a public subnet, exposing internal microservices directly to the internet.
Follow-up questions
- What is a NAT Gateway?