Michael wrote:

[
Just a minor additional suggestion: since this is for a home network, you
probably have DNS servers supplied by your ISP. You should configure your
named server as a forwarder rather than doing your own full resolution,
e.g., add

  forward only;
  forwarders {
  68.87.76.178;
  68.87.78.130;
  };

to your named.conf options section. The values above are for Comcast in San
Jose, you'll need to change them!]

After cat /etc/resolve.conf, got this:

nameserver 203.88.111.18
nameserver 4.2.2.2

Should I replace 

68.87.76.178;
68.87.78.130;

with the values:

203.88.111.18;

4..2.2.2;

And what does the forwarder do?

Thanks for reply.