Question

169

How to resolve hostname to an ip address in node js

rated 0 times [ 173] [ 4] / answers: 1 / hits: 38013 / 8 Years ago, mon, april 18, 2016, 12:00:00

I need to resolve hostname defined in hosts file to its corresponding IP address.

For example my host file look like this - /etc/hosts

127.0.0.1    ggns2dss81 localhost.localdomain localhost

::1     localhost6.localdomain6 localhost6

192.168.253.8    abcdserver

192.168.253.20   testwsserver

Now in my node.js, i can read content of this file, but i need to fetch for given hostname.

hostname = testwsserver

hostIP = getIP(hostname);

console.log(hostIP); // This should print 192.168.253.20

PS - npm pkg or any third party package cannot be installed on machine.

Help is much appreciated!!

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deving

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2 Years ago

answered 8 Years ago christianu · Accepted Answer

How about NodeJS documentation - DNS – have you checked it?

const dns = require('dns')



dns.lookup('testwsserver', function(err, result) {

  console.log(result)

})