Forward queries for certain domian names to another name server.

Use a zone statement of type forward to tell a BIND server to forward queries for domain names that
end in the specified suffix to particular name servers. For example:

zone "domian.com" {
type forward;
forwarders { 172.16.12.100; };
};

This tells the name server to forward queries for domain names that end in domain.com to the name server at 172.16.12.100