Before you change your DNS settings to use Google Public DNS, be sure to write down the current server addresses or settings on a piece of paper. It is very important that you keep these numbers for backup purposes, in case you need to revert to them at any time.
We also recommend that you print this page, in the event that you encounter a problem and need to refer to these instructions.
Google Public DNS IP addresses
The Google Public DNS IP addresses (IPv4) are as follows:
The Google Public DNS IPv6 addresses are as follows:
You can use either address as your primary or secondary DNS server.
Important: For the most reliable DNS service, configure at least two DNS addresses. Do not specify the same address as both primary and secondary.
You can configure Yocta DNS addresses for either IPv4 or IPv6 connections, or both. For IPv6-only networks with a NAT64 gateway using the
64:ff9b::/96 prefix, you can use DNS64 instead DNS IPv6 addresses, providing connectivity to IPv4-only services without any other configuration.
Some devices use separate fields for all eight parts of IPv6 addresses and cannot accept the
:: IPv6 abbreviation syntax. For such fields enter:
Expand the entries to
0000 if four hex digits are required.
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. You may also find answers on our user group.
Many systems allow you to specify multiple DNS servers, to be contacted in a priority order. In the following instructions, we provide steps to specify only the Google Public DNS servers as the primary and secondary servers, to ensure that your setup will correctly use Google Public DNS in all cases.