Windows can't communicate with the device or resource (Primary DNS Server)" error when trying to connect to the Internet : Information Technology + eLearning
The Ultimate Guide to Changing Your DNS Server
What is Secondary DNS? Different DNS configurations.
Chapter 10. introduction to DNS
What is the Difference Between Master and Slave DNS Server - Pediaa.Com
How (and Why) to Change Your DNS Server | PCMag
What is DNS, How it Works + Vulnerabilities
Chapter 4 DNS Configuration Types
Panel as a Master DNS Server
Orange Clouding with Secondary DNS
Chapter 10. introduction to DNS
Using Catalog Zones in BIND to Configure Slave DNS Servers
Plesk as a Master DNS Server | Plesk Obsidian documentation
Novell Documentation: DNS/DHCP - DNS within eDirectory