How does Bruno resolve DNS?

[JJ-Kamminga]

I have an issue resolving a URL: DNS lookup error for *****: getaddrinfo ENOTFOUND. The URL is in a protected network, to which I connect via a VPN. I am trying to connect to a simple endpoint /version from my Ubuntu 25.04 machine.

Browser, curl, ping, nslookup all resolve correctly.

If I connect to the IP address instead of the URL, it also resolves. (But I want the hostname resolution to be part of the tests, so just configuring IP's is not desirable.)

I've scoured all the settings, docs and issues, but it is still unclear to me how Bruno resolves DNS (and how I can fix this issue).

[helloanoop]

Hey @JJ-Kamminga

Bruno internally uses axios which I believe uses NodeJS api's underneath.
If you have access to the machine, could you run this simple node script and check if the resolution works.

const axios = require('axios');

async function main() {
  try {
    const res = await axios.get('https://www.google.com');
    console.log('Status:', res.status);
    console.log('Headers:', res.headers['content-type']);
    console.log('Body length:', res.data.length);
  } catch (err) {
    console.error('Request failed:', err.message);
  }
}

main();

Also, has this worked in a previous API client that you were using ?

[JJ-Kamminga]

I tried this and it resolves too.

It did get me thinking and tried some other packages, and solved the issue by using the snap.

Before, I used the flatpak. So it looks like the issue is there.