nginx（发音同 engine x）是一款轻量级的Web 服务器／反向代理服务器及电子邮件（IMAP/POP3）代理服务器，并在一个BSD-like 协议下发行。由俄罗斯的程序设计师Igor Sysoev所开发，最初供俄国大型的入口网站及搜寻引擎Rambler（俄文：Рамблер）使用。 其特点是占有内存少，并发能力强，事实上nginx的并发能力确实在同类型的网页伺服器中表现较好.
目前中国大陆使用nginx网站用户有：新浪、网易、腾讯,另外知名的微网志Plurk也使用nginx。下载:
http://nginx.org/download/nginx-0.8.34.tar.gz (linux)
http://nginx.org/download/nginx-0.8.34.zip (win)

Changes with nginx 0.8.34                                        03 Mar 2010

   *) Bugfix: nginx did not support all ciphers and digests used in client
      certificates.
      Thanks to Innocenty Enikeew.

   *) Bugfix: nginx cached incorrectly FastCGI responses if there was
      large stderr output before response.

   *) Bugfix: nginx did not support HTTPS referrers.

   *) Bugfix: nginx/Windows might not find file if path in configuration
      was given in other character case; the bug had appeared in 0.8.34.

   *) Bugfix: the $date_local variable has an incorrect value, if the "%s"
      format was used.
      Thanks to Maxim Dounin.

   *) Bugfix: if ssl_session_cache was not set or was set to "none", then
      during client certificate verify the error "session id context
      uninitialized" might occur; the bug had appeared in 0.7.1.

   *) Bugfix: a geo range returned default value if the range included two
      or more /16 networks and did not begin at /16 network boundary.

   *) Bugfix: a block used in a "stub" parameter of an "include" SSI
      directive was output with "text/plain" MIME type.

   *) Bugfix: $r->sleep() did not work; the bug had appeared in 0.8.11.