Nginx下多项目部署

           首先我的项目比较多,但是服务器就一个,如何才能保证我在监听80端口的同时,又使得我的域名下不会出现www.a.com:81,www.b.com:82等尴尬呢?

具体nginx的配置如下:

server {
        listen       80;
        server_name  www.a.com;
        charset utf-8;
        access_log  /home/a.com.access.log  main;
        location / {
            proxy_pass http://127.0.0.1:81;
        }
}

 server {
        listen       80;
        server_name  www.b.com;
        charset utf-8;
        access_log  /home/b.com.access.log  main;
        location / {
            proxy_pass http://127.0.0.1:82;
        }
}