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Linux

Before you begin, take note of any DNS addresses you might have set up, and save them in a safe place in case you need to use them later.

Consider the sections below to set up 1.1.1.1 using either the command line interface (CLI) or a graphical user interface (GUI) of your preference.

Use command line interface (CLI)

Choose whether you want to use 1.1.1.1 or 1.1.1.1 For Families, and replace 1.1.1.1 with the corresponding IPv4 or IPv6 address accordingly.

resolv.conf

Usually, /etc/resolv.conf is where you can configure the resolver IPs that your system is using.

In that case, you can use the following one-line command to specify 1.1.1.1 as your DNS resolver and 1.0.0.1 as backup:

Terminal window
echo -e "nameserver 1.1.1.1\nnameserver 1.0.0.1" | sudo tee /etc/resolv.conf

Alternatively, you can use an editor (nano or vim, for example) to manually edit the file.

systemd-resolved

If you use systemd-resolved utility and the resolver IPs configuration is in /etc/systemd/resolved.conf, consider the steps below:

  1. Run the following command, replacing <EDITOR> with your preferred editor.
Terminal window
sudo <EDITOR> /etc/systemd/resolved.conf
  1. In the editor, add or edit the following lines:
[Resolve]
DNS=1.1.1.1

Use graphical user interface (GUI)

GNOME

  1. Go to Show Applications > Settings > Network.
  2. Select the adapter you want to configure — like your Ethernet adapter or Wi-Fi card — and select the Settings button.
  3. On the IPv4 tab > DNS section, disable the Automatic toggle.
  4. Depending on what you want to configure, choose one of the following DNS addresses for IPv4:

    Use 1.1.1.1 resolver

    1.1.1.1
    1.0.0.1

    Block malware with 1.1.1.1 for Families

    1.1.1.2
    1.0.0.2

    Block malware and adult content with 1.1.1.1 for Families

    1.1.1.3
    1.0.0.3
  5. Go to IPv6.
  6. Depending on what you want to configure, choose one of the following DNS addresses for IPv6:

    Use 1.1.1.1 resolver

    2606:4700:4700::1111
    2606:4700:4700::1001

    Block malware with 1.1.1.1 for Families

    2606:4700:4700::1112
    2606:4700:4700::1002

    Block malware and adult content with 1.1.1.1 for Families

    2606:4700:4700::1113
    2606:4700:4700::1003
  7. Select Apply.

KDE Plasma

  1. Go to System Settings > Wi-Fi & Internet > Wi-Fi & Networking. (or Connections, if on Plasma 5)
  2. Select the connection you want to configure - like your current connected network.
  3. On the IPv4 tab, select the Method drop-down menu > Automatic (Only addresses).
  4. Select the text box next to DNS servers.
  5. Depending on what you want to configure, choose one of the following DNS addresses for IPv4:

    Use 1.1.1.1 resolver

    1.1.1.1
    1.0.0.1

    Block malware with 1.1.1.1 for Families

    1.1.1.2
    1.0.0.2

    Block malware and adult content with 1.1.1.1 for Families

    1.1.1.3
    1.0.0.3
  6. On the IPv6 tab, select the Method drop-down menu > Automatic (Only addresses).
  7. Select the text box next to DNS servers.
  8. Depending on what you want to configure, choose one of the following DNS addresses for IPv6:

    Use 1.1.1.1 resolver

    2606:4700:4700::1111
    2606:4700:4700::1001

    Block malware with 1.1.1.1 for Families

    2606:4700:4700::1112
    2606:4700:4700::1002

    Block malware and adult content with 1.1.1.1 for Families

    2606:4700:4700::1113
    2606:4700:4700::1003
  9. Select Apply.