Setup: Ubuntu 20.04 LTS

Introduction

The easiest way to set Quad9 on your entire network is via your router settings. If you'd prefer to set Quad9 on a single system, please follow the steps below to configure Ubuntu 20.04 LTS to use Quad9.

Step 1

From the Ubuntu desktop, select the drop down menu in the top right corner of the screen, expand either Wired or Wireless Connected based on your connection and then select Wired or Wireless Settings.

Step 2

Select the gear icon next to your connection.

Step 3a

Select the IPv4 tab, disable Automatic DNS and then enter the Quad9 IP addresses of your preferred service.

Multiple IP addresses can be entered in the list using comas.

9.9.9.9, 149.112.112.112

If skipping Step 3b, simply click Apply to complete the set up process, and then confirm you're using Quad9.

Step 3b

If your network/computer support IPv6, it's also recommended to configure the Quad9 IPv6 addresses. If you're not sure if IPv6 is configured on your network, you can test that here: https://test-ipv6.com/

Select the IPv6 tab, disable Automatic DNS and then enter the Quad9 IP addresses of your preferred service.

Multiple IP addresses can be entered in the list using comas.

2620:fe::fe, 2620:fe::9

Click Apply to complete the setup process.

Step 4

Confirm you're using Quad9.