13/06/2016
iWapHost Now Server Available With Nginx Technology We Offer Nginx Server
LEMP stack is a group of open source software to get web servers up and running. The acronym stands for Linux, nginx (pronounced Engine x), MySQL, and PHP. Since the server is already running CentOS, the linux part is taken care of. Here is how to install the rest.
nginx [engine x] is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server, originally written by Igor Sysoev. For a long time, it has been running on many heavily loaded Russian sites including Yandex, Mail.Ru, VK, and Rambler. According to Netcraft, nginx served or proxied 27.24% busiest sites in May 2016. Here are some of the success stories: Netflix, Wordpress.com, FastMail.FM. www.iWapHost.Net
The sources and documentation are distributed under the 2-clause BSD-like license.
Commercial support is available from Nginx, Inc.
Basic HTTP server features
Serving static and index files, autoindexing; open file descriptor cache;
Accelerated reverse proxying with caching; load balancing and fault tolerance;
Accelerated support with caching of FastCGI, uwsgi, SCGI, and memcached servers; load balancing and fault tolerance;
Modular architecture. Filters include gzipping, byte ranges, chunked responses, XSLT, SSI, and image transformation filter. Multiple SSI inclusions within a single page can be processed in parallel if they are handled by proxied or FastCGI/uwsgi/SCGI servers;
SSL and TLS SNI support;
Support for HTTP/2 with weighted and dependency-based prioritization.
Other HTTP server features
Name-based and IP-based virtual servers;
Keep-alive and pipelined connections support;
Flexible configuration;
Reconfiguration and upgrade of an executable without interruption of the client servicing;
Access log formats, buffered log writing, fast log rotation, and syslog logging;
3xx-5xx error codes redirection;
The rewrite module: URI changing using regular expressions;
Executing different functions depending on the client address;
Access control based on client IP address, by password (HTTP Basic authentication) and by the result of subrequest;
Validation of HTTP referer;
The PUT, DELETE, MKCOL, COPY, and MOVE methods;
FLV and MP4 streaming;
Response rate limiting;
Limiting the number of simultaneous connections or requests coming from one address;
Embedded Perl.
Mail proxy server features
User redirection to IMAP or POP3 server using an external HTTP authentication server;
User authentication using an external HTTP authentication server and connection redirection to an internal SMTP server;
Authentication methods:
POP3: USER/PASS, APOP, AUTH LOGIN/PLAIN/CRAM-MD5;
IMAP: LOGIN, AUTH LOGIN/PLAIN/CRAM-MD5;
SMTP: AUTH LOGIN/PLAIN/CRAM-MD5;
SSL support;
STARTTLS and STLS support.
TCP/UDP proxy server features
Generic proxying of TCP and UDP;
SSL termination for TCP;
Load balancing and fault tolerance;
Access control based on client address;
Limiting the number of simultaneous connections coming from one address.
Architecture and scalability
One master and several worker processes; worker processes run under an unprivileged user;
Support for kqueue (FreeBSD 4.1+), epoll (Linux 2.6+), /dev/poll (Solaris 7 11/99+), event ports (Solaris 10), select, and poll;
The support of the various kqueue features including EV_CLEAR, EV_DISABLE (to temporarily disable events), NOTE_LOWAT, EV_EOF, number of available data, error codes;
sendfile (FreeBSD 3.1+, Linux 2.2+, Mac OS X 10.5+), sendfile64 (Linux 2.4.21+), and sendfilev (Solaris 8 7/01+) support;
File AIO (FreeBSD 4.3+, Linux 2.6.22+);
DIRECTIO (FreeBSD 4.4+, Linux 2.4+, Solaris 2.6+, Mac OS X);
Accept-filters (FreeBSD 4.1+, NetBSD 5.0+) and TCP_DEFER_ACCEPT (Linux 2.4+) support;
10,000 inactive HTTP keep-alive connections take about 2.5M memory;
Data copy operations are kept to a minimum.
Tested OS and platforms
FreeBSD 3 — 10 / i386; FreeBSD 5 — 10 / amd64;
Linux 2.2 — 4 / i386; Linux 2.6 — 4 / amd64; Linux 3 — 4 / armv6l, armv7l, aarch64;
Solaris 9 / i386, sun4u; Solaris 10 / i386, amd64, sun4v;
AIX 7.1 / powerpc;
HP-UX 11.31 / ia64;
Mac OS X / ppc, i386;
Windows XP, Windows Server 2003.