Node.js, MongoDB, and AngularJS Web Development

Using the dns Module

If you want a Node.js application to resolve DNS domain names, look up domains, or do reverse lookups, then you will find the dns module very helpful. A DNS lookup contacts the domain name server and requests records about a specific domain name. A reverse lookup contacts the domain name server and requests the DNS name associated with an IP address. The dns module provides functionality for most of the lookups you may need to perform. Table 10.2 lists the methods, their syntax, and what they do.

Table 10.2 Methods that can ...