一、基础环境:

负   载  机:A机器: 192.168.71.223
后端机器1:B机器:192.168.71.224
后端机器2:C机器:192.168.71.226

需求:
1)访问A机器的8080端口,反向代理到B机器的8080端口;
   访问A机器的8088端口,反向代理到C机器的8088端口;
   访问http://192.168.71.223:8090/ios,反向代理到B机器http://192.168.1.102:8090/ios/

2)访问A机器的80端口,负载均衡到后端的两台机器B和C的80端口

二、安装配置:

1、三个机器共同执行:

1)编译安装nginx
yum install -y pcre* openssl* gcc gcc+
mkdir /opt/src  && cd /opt/src
wget http://nginx.org/download/nginx-1.8.0.tar.gz && tar -zxvf nginx-1.8.0.tar.gz && cd nginx-1.8.0
useradd www -M -s /sbin/nologin  #添加www用户,其中-M参数表示不添加用户家目录,-s参数表示指定shell类型
vi /opt/src/nginx-1.8.0/auto/cc/gcc  
#CFLAGS="$CFLAGS -g"  #将这句注释掉 取消Debug编译模式 大概在179行

./configure --prefix=/opt/nginx --user=www --group=www --with-http_stub_status_module --with-http_ssl_module #我们再配置下nginx编译参数 make && make install clean

2、机器A配置:

 cd /opt/nginx/conf
vi nginx.conf 

将配置改为:

worker_processes  2;

events {
    worker_connections  65535;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
    charset utf-8;

    log_format  main  '$http_x_forwarded_for $remote_addr $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_cookie" $host $request_time';
    sendfile       on;
    tcp_nopush     on;
    tcp_nodelay    on;
    keepalive_timeout  65;


    fastcgi_connect_timeout 3000;
    fastcgi_send_timeout 3000;
    fastcgi_read_timeout 3000;
    fastcgi_buffer_size 256k;
    fastcgi_buffers 8 256k;
    fastcgi_busy_buffers_size 256k;
    fastcgi_temp_file_write_size 256k;
    fastcgi_intercept_errors on;


    client_header_timeout 600s;
    client_body_timeout 600s;

    client_max_body_size 100m;
    client_body_buffer_size 256k;

    gzip  on;
    gzip_min_length  1k;
    gzip_buffers     4 16k;
    gzip_http_version 1.1;
    gzip_comp_level 9;
    gzip_types       text/plain application/x-javascript text/css application/xml text/javascript application/x-httpd-php;
    gzip_vary on;


    include vhosts/*.conf;
}
nginx.conf

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