Node.js built-in dns module functions are basic

Question

I'm trying to do simple reverse DNS lookups with the dns module built into Node js (I am using v12.18.0) in my React application, but I can't seem to get past the first step in testing the reverse function. Running the following code I noticed I was always getting 0.0.0.0 as the response. The following IP should resolve to something, not found even, but instead it just gives me 0.0.0.0 (not a hostname).

var dns = require('dns');
dns.reverse('192.229.133.221', (err, hosts) => console.log('hosts:', hosts));

Using the chrome developer tools it seems the implementation of reverse and all other functions (some are not even available, like getServers ) is this:

ƒ () {
  if (!arguments.length) return;
  var callback = arguments[arguments.length - 1];

  if (callback && typeof callback === 'function') {
    callback(null, '0.0.0.0');
  }
}

Am I missing something here?

Answer 1

After much googling, I've found that it is not possible to run this code is in a browser, hence why the functions appear to have hard-coded implementations. I thought I should update this post just in case.