node.js - 如何使用node.js dns.resolve函数查找多种记录类型？

Question

我正在使用node.js的 dns.resolve 函数查找给定域的 NS 和 CNAME 记录。我现在还想获取 TXT 和 SPF 记录。如果我单独做这一切 - 这是四个请求。有没有办法在一个请求中获取所有四种记录类型？

此外，SPF 信息是否始终采用 TXT 记录类型，还是可以有自己的记录类型？

Answer 1

我不是 Nodejs 专家，但仅从外观来看，您似乎必须执行四个不同的请求。

Also, is there any way to query SPF record with this function at all or should I use something else?

根据维基百科，SPF 是:

Sender Policy Framework (SPF) is an email validation system designed to prevent email spam by detecting email spoofing, a common vulnerability, by verifying sender IP addresses. SPF allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific SPF record (or TXT record) in the Domain Name System (DNS). Mail exchangers use the DNS to check that mail from a given domain is being sent by a host sanctioned by that domain's administrators.

您可以自己编写代码，可能是通过查询 TXT 记录，然后检查它是否有效。

再说一遍，我对 Nodejs 的了解非常少。