Resolve a list of DNS names

dns_resolve_names.js

// Accessing dns module
const dns = require('dns');

async function run() {
  const names = [
   'hostname1.com',
   'hostname2.com',
  ]

  for await (const name of names) {
    // can use resolve4() to get IP4 or resolve6() to get IP6 addresses.
    let ips = await dns.promises.resolve(name)
    console.log('%s: %j', name, ips)
  }
}

// Start
run()
  .then(() => process.exit(0))
  .catch((err) => { console.error(err); process.exit(1) })