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.
