Concept

Nginx

Summary
Nginx (pronounced "engine x" pronˌɛndʒɪnˈɛks , 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. The software was created by Igor Sysoev and publicly released in 2004. Nginx is free and open-source software, released under the terms of the 2-clause BSD license. A large fraction of web servers use Nginx, often as a load balancer. A company of the same name was founded in 2011 to provide support and NGINX Plus paid software. In March 2019, the company was acquired by F5, Inc. for $670 million. W3Tech's web server count of all web sites ranked Nginx first with 33.6%. Apache was second at 31.4% and Cloudflare Server third at 21.6%. , Netcraft estimated that Nginx served 22.01% of the million busiest websites with Apache a little ahead at 23.04%. Cloudflare at 19.53% and Microsoft Internet Information Services at 5.78% rounded out the top four servers for the busiest websites. Some of Netcraft's other statistics show Nginx ahead of Apache. A 2018 survey of Docker usage found that Nginx was the most commonly deployed technology in Docker containers. In OpenBSD version 5.2 (November 2012), Nginx became part of the OpenBSD base system, providing an alternative to the system's fork of Apache 1.3, which it was intended to replace, but later in version 5.6 (November 2014) it was removed in favor of OpenBSD's own httpd(8). Nginx is easy to configure in order to serve static web content or to act as a proxy server. Nginx can be deployed to also serve dynamic content on the network using FastCGI, SCGI handlers for scripts, WSGI application servers or Phusion Passenger modules, and 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 predictable performance under high loads. Ability to handle more than 10,000 simultaneous connections with a low memory footprint (~2.
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