Setting up a nameserver for your public domain

Setting up a nameserver for a public domain works the same way as setting up a DNS server for an internal hostname, just with a few additional parts that we'll want to make sure are in a good state.

How to do it...

Let's set up a nameserver for a public domain:

1. Set up a properly configured SOA record:

   example.org.  IN  SOA  ns1.example.org. admin.example.org. (
    2015081401
    28800
    3600
    604800 
    38400
   ) 

2. Set up a record for NS hosts:

   Ns1    IN      A       192.168.1.1

3. Set up glue records:

   $ORIGIN example.org
          IN      NS      ns1.example.org.
   Ns1    IN      A       192.168.1.1

How it works…

The first step is to configure the start of authority (SOA) for your domain. The SOA provides basic information about the zone itself. It contains a number of fields, including:

• Example.org: The zone.
• IN: Class of the record. IN is Internet, which you'll see for the majority of DNS records that you see.
• SOA: Start of authority.
• ns1.example.org...