The DNS requires some initial knowledge of the Internet to resolve name query. It must know the name and IP number of the master DNS server on the Internet. From this basic information, the DNS can learn more and solves any query.
This file seldom change. It is generally distributed with the bind package. On some distribution, this is included in the caching-nameserver package.
The original copy is maintained at ftp://ftp.rs.internic.net/domain/named.root