Nginx介绍:
Nginx发音为[engine x]，是由俄罗斯人Igor Sysoev建立的项目,基于BSD许可。
据说他当初是F5的成员之一，英文主页：http://nginx.net。俄罗斯的一些大网站已经使用它超过两年多了， 一直表现不凡,相信想了解nginx的朋友都读过阿叶大哥的利用nginx实现负载均衡的文章相关链接见(六)。
测试环境:红动中国(redocn)提供运营服务器环境.
关于红动服务环境:
红动中国在早期利用apache环境，再加上一些优化的工作，一直是相对很稳定，但是最近由于网站发展，访问量越来越大，在线人数一多经常出现，负载过高，性能急剧下降，经过双木站长的同意，考虑是否能利用nginx来代替apache，经过长时间的观察目前nginx工作很稳定，系统也不会再说现高负载的状况，占用内存也很低,访问速率从用户体验来看明显有提升.
关于红动中国:
红动中国（redocn)论坛经过近1年的快速发展，目前日均页面访问量超过100万，位居全球设计论坛(中文)第1位，是国内最具影响力的设计论坛之一。目前论坛拥有近20万会员，包括众多设计界领军人物在内的行业中坚力量、相关艺术院校师生以及部分设计爱好者等。
迁移目标:实现网站论坛静态化，防盗链，下载并发数和速率限制,实现原站apache所具有的所有功能,将原apache环境下的站点全部迁移到Nginx
一.PHP(Fastcgi)编译安装
[root@att php-5.2.4]# cat in.sh./configure \
–prefix=/usr/local/php-fcgi \
–enable-fastcgi \
–enable-discard-path \
–enable-force-cgi-redirect \
–with-config-file-path=/usr/local/php-fcgi/etc \
–enable-zend-multibyte \
–with-mysql=/usr/local/mysql \
–with-libxml-dir=/usr/local/libxml2 \
–with-gd=/usr/local/gd2 \
–with-jpeg-dir \
–with-png-dir \
–with-bz2 \
–with-freetype-dir \
–with-iconv-dir \
–with-zlib-dir \
–with-openssl=/usr/local/openssl \
–with-mcrypt=/usr/local/libmcrypt \
–enable-sysvsem \
–enable-inline-optimization \
–enable-soap \
–enable-gd-native-ttf \
–enable-ftp \
–enable-mbstring \
–enable-exif \
–disable-debug \
–disable-ipv6
make
make install
cp php.ini-dist /usr/local/php-fcgi/etc/php.ini
复制代码注:关于如何安装gd库，mysql的编译安装，本文将不介绍，本文重点在于介绍nginx的安装与配置，如想了解其它相关的问题可以到
LinuxPk去找相关的贴子(http://bbs.linuxpk.com)
二.Nginx编译安装
1.创建nginx运行用户和虚拟主机目录groupadd www -g 48
useradd -u 48 -g www www
mkdir -p /data/www/wwwroot
chown -R www:www /data/www/wwwroot
复制代码2.安装lighttpd中附带的spawn-fcgi，用来启动php-cgi
先编译安装lighttpd产生spawn-fcgi二进制文件.cd /usr/local/src/lighttpd-1.4.18
http://www.knowsky.com/
cp src/spawn-fcgi /usr/local/php-fcgi/bin/
复制代码启动php-cgi进程，监听127.0.0.1的8085端口，进程数为250（如果服务器内存小于3GB，可以只开启25个进程），用户为www：
/usr/local/php-fcgi/bin/spawn-fcgi -a 127.0.0.1 -p 8085 -C 250 -u www -f /usr/local/php-fcgi/bin/php-cgi
3.nginx的安装与配置
安装Nginx所需的pcre库：
http://ftp.dk.debian.org/exim/pcre/pcre-7.3.tar.gz tar zxvf pcre-7.2.tar.gz
cd pcre-7.2/
./configure
make && make install
cd ../
http://sysoev.ru/nginx/nginx-0.5.32.tar.gz
tar zxvf nginx-0.5.32.tar.gz
cd nginx-0.5.32
./configure –user=www –group=www –prefix=/usr/local/nginx/ –with-http_stub_status_module –with-
openssl=/usr/local/openssl
make && make install
复制代码此模块非核心模块，需要在编译的时候手动添加编译参数 –with-http_stub_status_module
配置nginx
三.Nginx主配置文件及PHP支持.
1.nginx.conf 主配置文件的配置
#cd /usr/local/nginx/conf/
#cp nginx.conf nginx.conf.cao
#cat /dev/null > nginx.conf
#vi nginx.conf //主配置文件user www www;
worker_processes 10;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
pid /var/run/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 51200;
events
{
use epoll;
#maxclient = worker_processes * worker_connections / cpu_number
worker_connections 51200;
}
http
{
include conf/mime.types;
default_type application/octet-stream;
log_format main ‘$remote_addr - $remote_user [$time_local] $request ‘
‘"$status" $body_bytes_sent "$http_referer" ‘
‘"$http_user_agent" "$http_x_forwarded_for"’;
#access_log /data/www/logs/access.log main;
#sendfile on;
tcp_nopush on;
tcp_nodelay off;
keepalive_timeout 60;
client_header_timeout 3m;
client_body_timeout 3m;
send_timeout 3m;
connection_pool_size 256;
client_header_buffer_size 1k;
large_client_header_buffers 4 2k;
request_pool_size 4k;
output_buffers 4 32k;
postpone_output 1460;
client_max_body_size 10m;
client_body_buffer_size 256k;
client_body_temp_path /dev/shm/client_body_temp;
proxy_temp_path /usr/local/nginx/proxy_temp;
fastcgi_temp_path /usr/local/nginx/fastcgi_temp;
#gzip
gzip on;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_proxied any;
gzip_types text/plain text/html text/css application/x-javascript text/xml application/xml application/xml rss text/javascript;
gzip_min_length 1100;
gzip_buffers 4 8k;
# The following includes are specified for virtual hosts //以下是加载虚拟主机配置.
#[url]www.redocn.com[/url]
include conf/vhosts/www_redocn_com.conf;
#bbs.redocn.com
include conf/vhosts/bbs_redocn_com.conf;
#blog.redocn.com
include conf/vhosts/blog_redocn_com.conf;
#down.redocn.com
include conf/vhosts/down_redocn_com.conf;
}
复制代码2.配置支持Fastcgi模式的PHP
[root@redocn conf]# cat enable_php5.conffastcgi_pass 127.0.0.1:8085;
fastcgi_index index.php;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx;
#new ac upload
#fastcgi_pass_request_body off;
#client_body_in_file_only clean;
#fastcgi_param REQUEST_BODY_FILE $request_body_file;
#
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;
# PHP only, required if PHP was built with –enable-force-cgi-redirect
fastcgi_param REDIRECT_STATUS 200;
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TAG: APACHE NGINX WEB 高性能 环境