Fix DNS Leaks on Linux
Step #1: Click the Network/ Wi-Fi icon and open the Wired/ Wi-Fi settings.
Step #2: Open Wired/ Wi-fi settings.
Step #3: Click IPv4 and Disable the “Automatic” toggle switch next to “DNS”.
Step #4: Enter the desired DNS addresses separated by a comma such as 220.127.116.11,18.104.22.168 and click on Apply.