Subdomain setup

Creating a Subdomain That Uses Amazon Route 53 as the DNS Service without Migrating the Parent Domain ¶

You can create a subdomain that uses Amazon Route 53 as the DNS service without migrating the parent domain from another DNS service.

The procedure shall involve following steps:

Create subdomain hosted zone
Create NS record on the parent domain hosted zone

In this example, we use example.com as parent hosted zone.

Create Subdomain ¶

You want to keep those parent domain hosted zone records, so now lets create the subdomain.

On your route 53 create the subdomain :

Create Hosted zone

Fill up the box Domain Name: with your subdomain : k8s.example.com

Route 53 should generate your NS server like below in subdomain management console:

ns-613.<example-aws-dns>-13.net.
ns-75.<example-aws-dns>-04.com.
ns-1022.<example-aws-dns>-35.co.uk.
ns-1149.<example-aws-dns>-27.org.

Take note on these records.

Create NS record on Parent domain hosted zone ¶

Add / Create a NS record on the parent domain hosted zone with previous noted subdomain NS server records via parent domain management console.

After done, the result should like this from cli:

dig ns k8s.example.com

;; ANSWER SECTION:
k8s.example.com.        172800  IN  NS  ns-613.<example-aws-dns>-13.net.
k8s.example.com.        172800  IN  NS  ns-75.<example-aws-dns>-04.org.
k8s.example.com.        172800  IN  NS  ns-1022.<example-aws-dns>-35.com.
k8s.example.com.        172800  IN  NS  ns-1149.<example-aws-dns>-27.co.uk.

Wait until the NS replication is ok