VPC private subnet proxy deployment

Start with a private subnet. Keep workloads invisible from outside traffic. Place the application servers here. No inbound routes from the public internet. Security groups restricted to only what the system needs.

Next, deploy a proxy in a public subnet or attached via a NAT gateway. This proxy handles outbound requests and inbound connections from specific, allowed endpoints. Use modern lightweight proxies—HAProxy, Envoy, or Nginx—to maintain throughput without adding heavy infrastructure.

Route traffic through the proxy using internal DNS. All requests from private workloads pass through the proxy before hitting external APIs or services. This isolates the internal network while still enabling necessary communication. Combined with VPC route tables and IAM rules, the setup gives precise control over what moves in and out.

For testing, simulate external calls from the private subnet through the proxy. Measure latency, packet drops, and throughput. Validate security policies by scanning for open ports and unauthorized connections. Ensure logging at the proxy layer to capture every request for future audits.

This Proof of Concept confirms if your private subnet design works at scale without exposing critical systems. It is the foundation for secure deployments in regulated environments or anywhere attack surface minimization is a priority.

Run this in minutes, without waiting on infrastructure teams. Build it. Test it. See your own Proof of Concept VPC private subnet proxy deployment live now—start at hoop.dev.