Nginx负载均衡反向代理

http{
    upstream test.com {  
    server 118.118.66.88:8080;  
    }

    server {
            listen       80;
            server_name  www.test.com;
            location / {
                 proxy_pass http://test.com;     
            }
    }

    server {
            listen       80;
            server_name  test.com;
            location / {
                 proxy_pass http://test.com;     
            }
    }

    server {
            listen       80;
            server_name  118.118.66.88;
            location / {
                 proxy_pass http://test.com;     
            }
    }
}