Google provides an excellent set of public DNS servers but it won’t work on an native IPv6 address or transport. From the official google help pages:
How do I setup Dynamic DNS (DDNS) in CentOS Linux 4 or 5 server operating systems?
The resolving name servers directly finds out information about the root servers, top level domains and authoritative name servers. It also speed up queries by caching results locallly as configured by hostmater in their domains’ TTL field. You can setup BIND 9 as caching name server to speed up dns caching for the rest of all clients. This tutorial explain – how to install BIND 9 caching only dns server under Debian Linux.
How do I use OpenDNS server for my CentOS Linux vps or dedicated server to resolve hostnames?
How do I set OpenDNS DNS server under Ubuntu Linux desktop operating systems by editing configuration files?