It is very important that you keep these numbers for backup purposes, in case you need to revert to them at any time.

You can configure Google Public DNS addresses for either IPv4 or IPv6 connections, or both.

For IPv6-only networks with a NAT64 gateway using the prefix, you can use Google Public DNS64 instead of Google Public DNS IPv6 addresses, providing connectivity to IPv4-only services without any other configuration.

The below example changes to locale to en-US: In some cases turning off the firewall allows for access.

In some cases simply having the firewall installed looks to block access.

To use Google Public DNS, you need to explicitly change the DNS settings in your operating system or device to use the Google Public DNS IP addresses.

The procedure for changing your DNS settings varies according to operating system and version (Windows, Mac or Linux) or the device (computer, phone, or router).

Some ISPs hard-code their DNS servers into the equipment they provide; if you are using such a device, you will not be able to configure it to use Google Public DNS.

Instead, you can configure each of the computers connected to the router, as described above. DNS servers are typically specified under advanced Wi-Fi settings.

If you do not want this behavior you can run this command to change the Ubuntu locale after install completes.

You will have to relaunch for this change to take effect.

I had just finished updating the second edition of Knoppix Hacks and in addition to attending the conference I was there to promote it and my other books at the O'Reilly booth.