Describe Public and Private DNS zones

Contents

  1. 1 Summary
  2. 2 Reference
  3. 3 Public DNS Zone
  4. 4 Private DNS Zone
    1. 4.1 Lab

Summary

OCI provides two (2) types of DNS zones: public and private. A public DNS zone manages domain names accessible over the Internet. A private DNS zone doesn't.

Reference

Public DNS Zone

Public DNS resolver resolves DNS queries from the Internet.

Private DNS Zone

Private DNS resolvers resolves DNS queries at a subnet level. Resolvers can share views of private DNS records, or have differing DNS records.

Lab

This topic is covered by Lab 6-1: Networking - DNS Management: Create a Private DNS Zone

Overview

In this lab, you will configure a private DNS zone and create a DNS A record that corresponds to a private IP address. You will create two compute instances, one runnig Oracle Linux that will be used as a web server, and another running Microsoft windows, which will be used as a client.

Private DNS Zones

Private DNS zones contains DBS data that is accessible only from within a Virtual Cloud Network (VCN). a private DNS zone has capabilities similar to an Internet DNS zone but provides responses only for clients that can reach it through a private VCN. Each zone belongs to a single view.

Layout for lab 6-1 showing a user connecting through an internet gateway to a Windows workstation within a public subnet. This workstation is then used as jump host to a web server in the private subnet.