9.2 Configuring a Root Name Server on a Separate Server (BIND Version 4)

Let’s say you have two name servers for the company.com domain in our closed Intranet: ns1.company.com at IP address 10.1.1.1 and ns2.company.com at IP address 10.2.2.2. And an additional third name server for the root domain (.): ns-root.company.com. at IP address 10.3.3.3.

9.2.1Configuring a Name Server for the Root Domain

In the /etc/named.boot file of the ns-root.company.com server, insert a line declaring that your name server is the primary name server for the root domain "." (dot):

...
primary . file2
...

Note that, there is no line with a cache command.

file2 specifying the root domain will delegate authority over the company.com domain to the ns1.company.com and ns2.company.com name servers:

@ IN SOA ...
IN NS ns1.company.com.
IN NS ns2.company.com.
ns1.company.com. IN A 10.1.1.1
ns2.company.com. IN A 10.2.2.2
company.com IN NS ns1.company.com.
IN NS ns2.company.com.

As mentioned earlier, since you have not inserted...