执行后端就出现如下错误

Error: getaddrinfo ENOTFOUND http://124.2x1.xxx.xxx
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:71:26) {
  errno: -3008,
  code: 'ENOTFOUND',
  syscall: 'getaddrinfo',
  hostname: 'http://124.2x1.xxx.xxx'
}