Nginx is an open source HTTP Web server and reverse proxy server. Pronounced as “Engine-Ex,” Nginx has emerged as the third most popular Web server behind the Apache Web server and Microsoft’s IIS, and it currently powers popular websites like Pinterest, WordPress.com, Netflix, Hulu, CloudFlare, Zappos and Zynga.
In addition to offering HTTP server capabilities, Nginx can also operate as an IMAP/POP3 mail proxy server as well as function as a load balancer and HTTP cache server. Nginx can run on Linux, Mac OS X, Solaris, AIX, HP-UX and BSD variants.
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