Nginx

nginx [engine x] is a HTTP server and mail proxy server.

Basic HTTP features:

• Handling of static files, index files, and autoindexing; open file descriptor cache;
• Accelerated reverse proxying without caching, simple load balancing and fault tolerance;
• Accelerated support without caching of remote FastCGI servers, simple load balancing and fault tolerance;
• Modular architecture. Filters include gzipping, byte ranges, chunked responses, and SSI. Multiple SSI inclusions within a single page can be processed in parallel if they are handled by FastCGI or proxied servers.
• SSL and TLS SNI support.

Mail proxy server features:

• User redirection to IMAP/POP3 backend using an external HTTP authentication server;
• User authentication using an external HTTP authentication server and connection redirection to internal SMTP backend;
• Authentication methods:

         o POP3: USER/PASS, APOP, AUTH LOGIN PLAIN CRAM-MD5;
         o IMAP: LOGIN, AUTH LOGIN PLAIN CRAM-MD5;
         o SMTP: AUTH LOGIN PLAIN CRAM-MD5;

• SSL support;
• STARTTLS and STLS support.

Other HTTP features:

• name- and IP-based virtual servers;
• keep-alive and pipelined connections support;
• flexible configuration;
• reconfiguration and online upgrade without interruption of the client processing;
• access log formats, bufferred writing, and quick log rotation;
• 4xx-5xx error codes redirection;
• rewrite module;
• access control based on client IP address and HTTP Basic authentication;
• PUT, DELETE, MKCOL, COPY and MOVE methods;
• FLV streaming;
• speed limitation;
• limitation of simultaneous connections from one address.

Links

• http://nginx.net/
• http://sysoev.ru/en/
• http://wiki.codemongers.com/
• http://download.huihoo.com/nginx/
• http://docs.huihoo.com/nginx/