nginx 负载均衡的简单配置例子

http 
    { 
      upstream www.test2.com { 
                server 10.1.165.36:80  weight = 3;         
        server 10.249.198.235; 
             server 10.1.168.1  down;  
             server 10.1.168.2  backup; 
            #ip_hash; 
       } 
      server 
      { 
            location / { 
                  proxy_pass        http://www.test2.com; 
                  proxy_set_header   Host             $host; 
                  proxy_set_header   X-Real-IP        $remote_addr; 
                  proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for; 
                  } 
    }