下面映射了两个port,8888转向128.30.14.220:80，8890转向128.30.14.220:8890
nginx.conf

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}



stream {
     upstream bms {
		server 128.30.14.220:80; #这里配置成要访问的地址
     }
     server {
		 listen 8888; #需要监听的端口
		 proxy_timeout 20s;
		 proxy_pass bms;
     }
     upstream bmsservice {
		server 128.30.14.220:8890; #这里配置成要访问的地址
     }
     server {
		 listen 8890; #需要监听的端口
		 proxy_timeout 20s;
		 proxy_pass bmsservice;
     }     
}