Ubuntu resolvectl set dns server

Changing the DNS server on Ubuntu is an easy task, but needs to be done carefully.

This article shows you how to do it easily.

Step 1: Check your current DNS Server

The first step is to always check, and note down the currently used DNS Servers – in case the change in DNS Server does not result in intended changes.

To show the current DNS servers that are being used per interface, use the 'resolvectl' command:

For systems running Ubuntu 20.04 or newer, please use the following command:

Running either of these commands will show you the DNS server(s) being used by each network interface.

Let us see the output of the 'resolvectl' command on my computer:

As evident from the output, my current DNS provider is Google.

I'd like to change that to something else, maybe Cloudflare.

Step 2: Temporarily change DNS (to test it out)

Before you change the DNS settings permanently, it is best to change it temporarily and see the results.

If there is regression, no need to revert as this is only a temporary change.

If the results a

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