How I Built a Secure Reverse Proxy with Nginx

A reverse proxy is one of the most powerful building blocks in modern web infrastructure. It sits between users and your backend services, acting as a gatekeeper that can improve performance, enforce security policies, and control traffic. In this article, I'll walk through how I built a secure reverse proxy using Nginx , including: Reverse proxy architecture Rate limiting to stop abuse Security headers for safer responses Request logging for visibility By the end, you'll have a practical setup you can deploy in front of your applications. Reverse Proxy Architecture At a high level, a reverse proxy sits between clients and your backend servers. Instead of users directly accessing your application server, all requests first go through the proxy. Client │ ▼ Reverse Proxy (Nginx) │ ▼ Application Server Benefits of this architecture: Hide internal infrastructure Centralize security policies Terminate TLS in one place Add traffic filtering and monitoring Example scenario: Internet │ ▼ Nginx