nginx [engine x] is a HTTP and reverse proxy server, as well as a mail proxy server written by Igor Sysoev. It has been running for more than five years on many heavily loaded Russian sites including Rambler (RamblerMedia.com). According to Netcraft nginx served or proxied 4.70% busiest sites in April 2010. Here are some of success stories: FastMail.FM, WordPress.com.
The sources are licensed under 2-clause BSD-like license.
Changes with nginx 1.4.3 08 Oct 2013
*) Bugfix: a segmentation fault might occur in a worker process if the
ngx_http_spdy_module was used with the “client_body_in_file_only”
directive.
*) Bugfix: a segmentation fault might occur on start or during
reconfiguration if the “try_files” directive was used with an empty
parameter.
*) Bugfix: the $request_time variable did not work in nginx/Windows.
*) Bugfix: in the ngx_http_auth_basic_module when using “$apr1$”
password encryption method.
Thanks to Markus Linnala.
*) Bugfix: in the ngx_http_autoindex_module.
*) Bugfix: in the mail proxy server.
More