How to Change DNS Server?

Public DNS IP addresses

  • (Google)
  • (CloudFlare)
  • (Quad 9)
  • (Google)
  • (CloudFlare)
  • (OpenDNS aka Cisco)
  • (OpenDNS aka Cisco)

The Google Public DNS IPv6 addresses are as follows:

  • 2001:4860:4860::8888 (Google)
  • 2001:4860:4860::8844 (Google)
  • 2606:4700:4700::1111 (Cloudflare)
  • 2606:4700:4700::1001 (Cloudflare)

You can use either address as your primary or secondary DNS server. You can specify both addresses, but do not specify the same address as both primary and secondary.

Change your DNS servers settings

Because the instructions differ between different versions/releases of each operating system, we only give one version as an example. If you need specific instructions for your operating system/version, please consult your vendor's documentation.


DNS settings are specified in the TCP/IP Properties window for the selected network connection.

  1. Go to the Control Panel.
  2. Click Network and Internet > Network and Sharing Center > Change adapter settings.
  3. Select the connection for which you want to configure Google Public DNS. For example:

    • To change the settings for an Ethernet connection, right-click Local Area Connection > Properties.
    • To change the settings for a wireless connection, right-click Wireless Network Connection > Properties.

    If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

  4. Select the Networking tab. Under This connection uses the following items, select Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6) and then click Properties.

  5. Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window.
  6. Click OK.
  7. Select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.
  8. Replace the IPv4 & IPv6 addresses with the IP addresses of your favourite DNS Providers from the list above.

  9. Restart the connection you selected in step 3

Mac OS

DNS settings are specified in the Network window.

  1. Open System Preferences.
  2. Search for DNS Servers and select it from the dropdown.
  3. Click the + button to add a DNS Server and enter the IP address i.e:
  4. Click + again and enter one of the IPv4 of your choice from the list above (redundancy purposes)
  5. Click + again and enter Ipv6 i.e: 2606:4700:4700::1111
  6. Click + again and enter one of the IPv6 of your choice from the list above (redundancy purposes)
  7. Click Ok, then click Apply.


In most modern Linux distributions, DNS settings are configured through Network Manager or by editing the /etc/resolv.conf to specify the DNS.

Example: Changing DNS server settings on Ubuntu

  1. Click the Applications icon on the left menu bar.
  2. Click Settings, then Network.
  3. Find your internet connection on the right pane, then click the gear icon.
  4. Click the IPv4 or IPv6 tab to view your DNS settings.
  5. Set the “Automatic” toggle on the DNS entry to Off.
  6. Click Apply to save the change. If you are prompted for a password or confirmation, type the password or provide confirmation.
  7. Enter the IPv4/IPv6 of your favourite provider from the list above.

- CSpace Hostings /

  • Change, DNS, Server, ISP
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