Quad9 DNS

IPv4

• Click the Network or WiFi icon in the system tray at the top-right corner of the screen.
  • Click the > next to the active connection.
    • Select Wired Settings or Wireless Settings.
• Click the gear icon next to your connection.
• Click the IPv4 tab.
• Disable Automatic DNS.
• Enter the Quad9 IP addresses of your preferred service.

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

9.9.9.9, 149.112.112.112

• If you will not use IPv6, click Apply to complete the setup process, and then confirm you're using Quad9.

IPv6 (Optional)

If your network supports 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.
    • Enter the Quad9 IP addresses of your preferred service.

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

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

• Click Apply to complete the setup process.

Verify Configuration

Confirm you're using Quad9 by visiting on.quad9.net in your preferred browser.

Taken from the Quad9 documentation.

Don't forget: Disconnect and reconnect yoru Wi-Fi!