Domain Name Service (DNS)
Google Public DNS IP addresses
Section titled “Google Public DNS IP addresses”The Google Public DNS IP addresses (IPv4) are as follows: 8.8.8.8 8.8.4.4
The Google Public DNS IPv6 addresses are as follows:
2001:4860:4860::8888 2001:4860:4860::8844
You can use either address as your primary or secondary DNS server.
OpenDNS Public DNS Servers
Section titled “OpenDNS Public DNS Servers”208.67.222.222 208.67.220.220