dns.resolveSoa(hostname, callback)

版本历史

版本	变更
v18.0.0	Passing an invalid callback to the `callback` argument now throws `ERR_INVALID_ARG_TYPE` instead of `ERR_INVALID_CALLBACK`.
v0.11.10	新增于: v0.11.10

hostname <string>
callback <Function>
- err <Error>
- address <Object>

使用 DNS 协议解析 hostname 的授权起始记录（SOA 记录）。传递给 callback 函数的 address 参数将是一个具有以下属性的对象：

【Uses the DNS protocol to resolve a start of authority record (SOA record) for the hostname. The address argument passed to the callback function will be an object with the following properties:】

nsname
hostmaster
serial
refresh
retry
expire
minttl

{
  nsname: 'ns.example.com',
  hostmaster: 'root.example.com',
  serial: 2013101809,
  refresh: 10000,
  retry: 2400,
  expire: 604800,
  minttl: 3600
}