Route 53 is a very highly available DNS server in AWS. It can work for both external routing as well as internal routing. Internal routing works within the internal network of a VPC where both source and destination services can be connected via internal IPs. It can be used for users or applications to connect within the private network boundary. The private network can be extended to Corporate data center, other VPC in same region connected through VPC peering or VPC in other region connected privately over secure channel.
Setting up a private DNS with a VPC
Getting ready
Log in to your AWS account with proper permissions for creating the required components.