DNS and Inbound Load Balancing
Understanding DNS
DNS Tree
Type of DNS server
When will DNS query happen?
DNS Query Flow
Type of DNS Records
Domain Registrar
Requirement of Authoritative DNS
Using Peplink as Authoritative DNS
Troubleshooting
Delegate the subdomain to Peplink
Delegate the subdomain to Peplink
Reverse DNS Lookup
Appendix

Domain Registrar

The companies who sell the second-level / third-level domain name (eg: yourdomain.com / yourdomain.co.uk)
It requires to setup at least two name servers (NS) which is used to pointing the zone to the authoritative DNS servers
Update the NS records in Domain Registrar will take up to 72 hours due to most other DNS in internet choose to periodically check for updates and not realtime