Nginx (pronounced "engine X", /ˌɛndʒɪnˈɛks/ EN-jin-EKS) (stylized as NGINX or NginX) is a web server that can also be used as a reverse proxy, load balancer, mail proxy, and HTTP cache. Nginx is free and open-source software, released under the terms of a BSD-like license. A large fraction of web servers uses NGINX often as a load balancer.
Nginx can be deployed to serve dynamic HTTP content on the network using FastCGI, SCGI handlers for scripts, WSGI application servers, or Phusion Passenger modules, and it can serve as a software load balancer.
Nginx uses an asynchronous event-driven approach, rather than threads, to handle requests. Nginx's modular event-driven architecture can provide more predictable performance under high loads.
Nginx default configuration file is