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Nginx ("engine x") 是一个高性能的 HTTP 和 反向代理 服务器，也是一个 IMAP/POP3/SMTP 代理服务器 。 Nginx 是由 Igor Sysoev 为俄罗斯访问量第二的 Rambler.ru 站点开发的，它已经在该站点运行超过两年半了。Igor 将源代码以类BSD许可证的形式发布。尽管还是测试版，但是，Nginx 已经因为它的稳定性、丰富的功能集、示例配置文件和低系统资源的消耗而闻名了。成都网站建设公司
本文是W3CGROUP在成功架设Nginx+Php Web服务器之后的一个总结，成功设置Nginx开启多域名多站点，并且不会出现502 Bad Gateway错误！成都小程序开发公司
本文测试环境如下：成都服务器托管
Linux version 2.6.9（CentOS release 4.7(Final)）
nginx-0.6.35.tar.gz
当前稳定版: Nginx 0.6.35 (2009年1月26日)
官方Wiki：http://wiki.nginx.org
官方下载：http://sysoev.ru/nginx/nginx-0.6.35.tar.gz
php-5.2.9.tar.gz
官方下载：http://www.php.net/get/php-5.2.9.tar.gz/from/this/mirror
php-5.2.9-fpm-0.5.10.diff.gz
官方下载：http://php-fpm.anight.org/downloads/archive/
mysql-5.1.34.tar.gz
libiconv-1.13.tar.gz
libmcrypt-2.5.8.tar.gz
mcrypt-2.6.8.tar.gz
mhash-0.9.9.9.tar.gz
Nginx0.6.35+Php5.2.9所有相关安装包下载 http://www.w3cgroup.com/code/nginx_php.rar
一、 编译安装PHP5.2.9所需的支持库
tar zxvf libiconv-1.13.tar.gz
cd libiconv-1.13/
./configure --prefix=/usr/local
make
make install
cd ../
tar zxvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8/
./configure
make
make install
/sbin/ldconfig
cd libltdl/
./configure --enable-ltdl-install
make
make install
cd ../../
tar zxvf mhash-0.9.9.9.tar.gz
cd mhash-0.9.9.9/
./configure
make
make install
cd ../
ln -s /usr/local/lib/libmcrypt.la /usr/lib/libmcrypt.la
ln -s /usr/local/lib/libmcrypt.so /usr/lib/libmcrypt.so
ln -s /usr/local/lib/libmcrypt.so.4 /usr/lib/libmcrypt.so.4
ln -s /usr/local/lib/libmcrypt.so.4.4.8 /usr/lib/libmcrypt.so.4.4.8
ln -s /usr/local/lib/libmhash.a /usr/lib/libmhash.a
ln -s /usr/local/lib/libmhash.la /usr/lib/libmhash.la
ln -s /usr/local/lib/libmhash.so /usr/lib/libmhash.so
ln -s /usr/local/lib/libmhash.so.2 /usr/lib/libmhash.so.2
ln -s /usr/local/lib/libmhash.so.2.0.1 /usr/lib/libmhash.so.2.0.1
tar zxvf mcrypt-2.6.8.tar.gz
cd mcrypt-2.6.8/
/sbin/ldconfig
./configure
make
make install
cd ../
二、编译安装MySQL 5.1.34扩展库
/usr/sbin/groupadd mysql
/usr/sbin/useradd -g mysql mysql
tar zxvf mysql-5.1.34.tar.gz
cd mysql-5.1.34/
./configure --prefix=/usr/local/webserver/mysql/ --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-big-tables --with-readline --with-ssl --with-embedded-server --enable-local-infile --with-plugins=innobase
make && make install
chmod +w /usr/local/webserver/mysql
chown -R mysql:mysql /usr/local/webserver/mysql
cd ../
MySql的安装此处就省略
三、编译安装PHP（FastCGI模式）
tar zxvf php-5.2.9.tar.gz
gzip -cd php-5.2.9-fpm-0.5.10.diff.gz | patch -d php-5.2.9 -p1
cd php-5.2.9/
./configure --prefix=/usr/local/webserver/php --with-config-file-path=/usr/local/webserver/php/etc --with-mysql=/usr/local/webserver/mysql --with-mysqli=/usr/local/webserver/mysql/bin/mysql_config --with-iconv-dir=/usr/local --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-discard-path --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-fpm --enable-force-cgi-redirect --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-ldap --with-ldap-sasl
make ZEND_EXTRA_LIBS='-liconv'
make install
cp php.ini-dist /usr/local/webserver/php/etc/php.ini
cd ../
四、修改php-fpm配置文件
rm -f /usr/local/webserver/php/etc/php-fpm.conf
vi /usr/local/webserver/php/etc/php-fpm.conf
输入以下内容：成都服务器托管
五、创建www用户组及www用户
/usr/sbin/groupadd www
/usr/sbin/useradd -g www www
六、编译安装Nginx
tar zxvf nginx-0.6.35.tar.gz
cd nginx-0.6.35/
默认安装：
./configure
make && make install
默认情况下，Nginx 会被安装在 /usr/local/nginx。通过设定编译选项，你可以改变这个设定。
指定编译选项安装，如：
./configure --user=www --group=www --prefix=/usr/local/webserver/nginx --with-http_stub_status_module --with-http_ssl_module
make && make install
cd ../
七、创建fcgi.conf文件
rm -f /usr/local/webserver/nginx/conf/fcgi.conf
vi /usr/local/webserver/nginx/conf/fcgi.conf
输入以下内容：成都服务器托管
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx;
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;
八、编辑Nginx配置文件
rm -f /usr/local/webserver/nginx/conf/nginx.conf
vi /usr/local/webserver/nginx/conf/nginx.conf
输入以下内容：成都服务器托管
user www www;
worker_processes 8;
error_log /usr/local/webserver/nginx/logs/logs/nginx_error.log crit;
pid /usr/local/webserver/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200;
events {
use epoll;
worker_connections 51200;
}
http {
include mime.types;
default_type application/octet-stream;
charset utf-8;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 8m;
sendfile on;
tcp_nopush on;
keepalive_timeout 60;
tcp_nodelay on;
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 8 64k;
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 128k;
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml;
gzip_vary on;
#limit_zone crawler $binary_remote_addr 10m;
#多个站点设置，站点文件夹必须放在Nginx的html目录，否则不支持多站点
server {
listen 80;
server_name www.v-ec.com;
root /usr/local/webserver/nginx/html/www.v-ec.com;
index index.php index.html;
location ~ .*.(php|php5)?$ {
#fastcgi_pass unix:/tmp/php-cgi.sock;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fcgi.conf;
}
location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$ {
expires 30d;
}
location ~ .*.(js|css)?$ {
expires 6h;
}
log_format veclog '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" $http_x_forwarded_for';
access_log logs/vec.log veclog;
}
#多个站点设置，站点文件夹必须放在Nginx的html目录，否则不支持多站点
server {
listen 80;
server_name www.w3cgroup.com;
root /usr/local/webserver/nginx/html/www.w3cgroup.com;
index index.php index.html;
location ~ .*.(php|php5)?$ {
#fastcgi_pass unix:/tmp/php-cgi.sock;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fcgi.conf;
}
location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$ {
expires 30d;
}
location ~ .*.(js|css)?$ {
expires 6h;
}
log_format w3cclog '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" $http_x_forwarded_for';
access_log logs/w3c.log w3clog;
}
}
九、配置开机自动启动Nginx + PHP
vi /etc/rc.local
在末尾增加以下内容：成都服务器托管
ulimit -SHn 51200
/usr/local/webserver/php/sbin/php-fpm start
/usr/local/webserver/nginx/sbin/nginx
十、优化Linux内核参数
vi /etc/sysctl.conf
在末尾增加以下内容：成都服务器托管
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
使配置立即生效：成都服务器托管
/sbin/sysctl –p
做到这里，可以reboot重启Linux了，不出意外的话应该可以顺利开启Nginx
Ps aux | grep nginx
找到Nginx的master process，假如为：5800，然后kill
Kill –HUP 5800
/usr/local/webserver/php/sbin/php-fpm restart
php-fpm的其他命令：start | stop | quit | restart | reload | logrotate