Mercurial > hg > nginx-site
view xml/en/index.xml @ 5:1ab4bbd98341
Be more chatty about subscription requirements.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Mon, 15 Aug 2011 06:24:10 +0000 |
parents | 61e04fc01027 |
children | b26e486dbd3c |
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<!DOCTYPE article SYSTEM "../../dtd/article.dtd"> <article title="nginx" link="/en/" lang="en"> <section> <para> nginx [engine x] is a HTTP and reverse proxy server, as well as a mail proxy server written by <a href="http://sysoev.ru/en/">Igor Sysoev</a>. It has been running for more than five years on many heavily loaded Russian sites including <a href="http://www.rambler.ru">Rambler</a> (<a href="http://ramblermedia.com">RamblerMedia.com</a>). According to Netcraft nginx served or proxied <a href="http://news.netcraft.com/archives/2010/04/15/april_2010_web_server_survey.html">4.70% busiest sites in April 2010</a>. Here are some of success stories: <a href="http://blog.fastmail.fm/2007/01/04/webimappop-frontend-proxies-changed-to-nginx/">FastMail.FM</a>, <a href="http://barry.wordpress.com/2008/04/28/load-balancer-update/">Wordpress.com</a>. </para> <para> The sources are licensed under <a href="/LICENSE">2-clause BSD-like license</a>. </para> </section> <section name="basic_http_features" title="Basic HTTP features"> <para> <list> <item> Serving static and index files, and autoindexing; open file descriptor cache; </item> <item> Accelerated reverse proxying with caching; simple load balancing and fault tolerance; </item> <item> Accelerated support with caching of remote FastCGI servers; simple load balancing and fault tolerance; </item> <item> Modular architecture. Filters include gzipping, byte ranges, chunked responses, XSLT, SSI, and image resizing filter. Multiple SSI inclusions within a single page can be processed in parallel if they are handled by FastCGI or proxied servers. </item> <item> SSL and TLS SNI support. </item> </list> </para> </section> <section name="other_http_features" title="Other HTTP features"> <para> <list> <item> Name-based and IP-based virtual servers; </item> <item> Keep-alive and pipelined connections support; </item> <item> Flexible configuration; </item> <item> Reconfiguration and online upgrade without interruption of the client processing; </item> <item> Access log formats, bufferred log writing, and quick log rotation; </item> <item> 3xx-5xx error codes redirection; </item> <item> The rewrite module; </item> <item> Access control based on client IP address and HTTP Basic authentication; </item> <item> The PUT, DELETE, MKCOL, COPY and MOVE methods; </item> <item> FLV streaming; </item> <item> Speed limitation; </item> <item> Limitation of simultaneous connections or requests from one address. </item> <item> Embedded perl. </item> </list> </para> </section> <section name="mail_proxy_server_features" title="Mail proxy server features"> <para> <list> <item> User redirection to IMAP/POP3 backend using an external HTTP authentication server; </item> <item> User authentication using an external HTTP authentication server and connection redirection to internal SMTP backend; </item> <item> Authentication methods: <list> <item> POP3: USER/PASS, APOP, AUTH LOGIN/PLAIN/CRAM-MD5; </item> <item> IMAP: LOGIN, AUTH LOGIN/PLAIN/CRAM-MD5; </item> <item> SMTP: AUTH LOGIN/PLAIN/CRAM-MD5; </item> </list> </item> <item> SSL support; </item> <item> STARTTLS and STLS support. </item> </list> </para> </section> <section name="architecture_and_scalability" title="Architecture and scalability"> <para> <list> <item> One master process and several workers processes. The workers run as unprivileged user; </item> <item> The notification methods: kqueue (FreeBSD 4.1+), epoll (Linux 2.6+), rt signals (Linux 2.2.19+), /dev/poll (Solaris 7 11/99+), event ports (Solaris 10), select, and poll; </item> <item> The support of the various kqueue features including EV_CLEAR, EV_DISABLE (to disable event temporalily), NOTE_LOWAT, EV_EOF, number of available data, error codes; </item> <item> sendfile (FreeBSD 3.1+, Linux 2.2+, Mac OS X 10.5), sendfile64 (Linux 2.4.21+), and sendfilev (Solaris 8 7/01+) support; </item> <item> File AIO (FreeBSD 4.3+, Linux 2.6.22+); </item> <item> Accept-filters (FreeBSD 4.1+) and TCP_DEFER_ACCEPT (Linux 2.4+) support; </item> <item> 10,000 inactive HTTP keep-alive connections take about 2.5M memory; </item> <item> Data copy operations are kept to a minimum. </item> </list> </para> </section> <section name="tested_os_and_platforms" title="Tested OS and platforms"> <para> <list> <item> FreeBSD 3 — 8 / i386; FreeBSD 5 — 8 / amd64; </item> <item> Linux 2.2 — 2.6 / i386; Linux 2.6 / amd64; </item> <item> Solaris 9 / i386, sun4u; Solaris 10 / i386, amd64, sun4v; </item> <item> MacOS X / ppc, i386; </item> <item> Windows XP, Windows Server 2003. </item> </list> </para> </section> </article>