code: function _getHost (fauxton_ip) {
      if (fauxton_ip) {
        return fauxton_ip;
      }
      //making some assumptions here
      const interfaces = os.networkInterfaces();
      const eth0 = interfaces[Object.keys(interfaces)[1]];
      return eth0.find(function (item) {
        return item.family === 'IPv4';
      }).address;
    }
docs: HELPERS if FAUXTON_HOST not set use ip address