Nginx 简单的负载均衡配置示例

用户访问http://www.net-hb.com.cn,将其负载均衡到192.168.1.2:80、192.168.1.3:80、192.168.1.4:80、192.168.1.5:80四台服务器。
  用户访问//www.jb51.net,将其负载均衡到192.168.1.7服务器的8080、8081、8082端口。
  以下为配置文件nginx.conf:
  引用
  [table=95%][tr][td]user www www;
  worker_processes 10;
  #error_log logs/error.log;
  #error_log logs/error.log notice;
  #error_log logs/error.log info;
  #pid logs/nginx.pid;
  #最大文件描述符
  worker_rlimit_nofile 51200;
  events
  {
  use epoll;
  worker_connections 51200;
  }
  http
  {
  include conf/mime.types;
  default_type application/octet-stream;
  keepalive_timeout 120;
  tcp_nodelay on;
  upstream www.net-hb.com.cn {
  server 192.168.1.2:80;
  server 192.168.1.3:80;
  server 192.168.1.4:80;
  server 192.168.1.5:80;
  }
  upstream blog.s135.com {
  server 192.168.1.7:8080;
  server 192.168.1.7:8081;
  server 192.168.1.7:8082;
  }
  server
  {
  listen 80;
  server_name www.net-hb.com.cn;
  location / {
  proxy_pass http://www.net-hb.com.cn;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }
  log_format www_s135_com '$remote_addr - $remote_user [$time_local] $request '
  '"$status" $body_bytes_sent "$http_referer" '
  '"$http_user_agent" "$http_x_forwarded_for"';
  access_log /data1/logs/www.log www_s135_com;
  }
  server
  {
  listen 80;
  server_name blog.s135.com;
  location / {
  proxy_pass //www.jb51.net;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }
  log_format blog_s135_com '$remote_addr - $remote_user [$time_local] $request '
  '"$status" $body_bytes_sent "$http_referer" '
  '"$http_user_agent" "$http_x_forwarded_for"';
  access_log /data1/logs/blog.log blog_s135_com;
  }
  }[/td][/tr][/table]  附:Nginx 的安装方法可参照《Nginx 0.5.31 + PHP 5.2.4(FastCGI)搭建可承受3万以上并发连接数,胜过Apache 10倍的Web服务器》文章的以下段落(仅做负载均衡,无需支持PHP的安装方法):
  二、安装PHP 5.2.4(FastCGI模式)
  4、创建www用户和组,以及其使用的目录:
  三、安装Nginx 0.5.31
  1、安装Nginx所需的pcre库:
  2、安装Nginx
  3、创建Nginx日志目录
  5、启动Nginx

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