Managing Mission - Critical Domains and DNS

Vanity nameservers

This is the practice of setting up nameservers under a specific domain being served, such as in the case where BigDNSCo is providing DNS service to example.com, the people running example.com want it to have all of their nameserver records within example.com. They may do this either to appear to be running their own nameserver infrastructure; perhaps they are reselling BigDNSCo's DNS, or, less frequently, because they are ideologically committed to in-bailiwick nameservers.

To do this, they will set up vanity glue records for ns1.example.com, ns2.example.com, and ns3.example.com, and point them at the same IP addresses as ns1.bigdnsco.com, ns2.bigdnsco.net, and ns3.bigdnsco.org (notice that BigDNSCo employs TLD Redundancy, ...