One of the most useful, but often misunderstood and misconfigured, features of NGINX is rate limiting. It allows you to limit the amount of HTTP requests a user can make in a given period of time. A request can be as simple as a GET request for the homepage of a website or a POST request on a log‑in form. Rate limiting can be used for security purposes, for example to slow down brute‑force password‑guessing attacks. It can help protect against DDoS attacks by limiting the incoming request rate
To setup Nginx as a load balancer for backend servers, follow these steps:1. Open the Nginx configuration file with elevated rights. 2. Define an upstream element and list each node in your backend cluster. 3. Map a URI to the upstream cluster with a proxy_pass location setting. 4. Restart the Nginx server to incorporate the config changes. 5. Verify successful configuration of the Nginx load balancer setup
