域名解析成功后访问ECS显示没有主机路由

xxx@xxx~/tools$ curl http://www.weixincosmos.top/
curl: (7) Failed to connect to www.weixincosmos.top port 80: 没有到主机的路由

nodejs代码：
var http = require('http');
http.createServer(function (req, res) {

res.writeHead(200, { 'Content-Type': 'text/plain' }); res.end('Hello World\n');

}).listen(80, "127.0.0.1");
console.log('Server running at http://www.weixincosmos.top/')

服务器上curl ：
root@iZwz9571fco0ktk1hao367Z:~# curl http://localhost
Hello World
root@iZwz9571fco0ktk1hao367Z:~#