Glossary
DNS
Zone
The portion of the DNS namespace a particular set of servers is authoritative for. A zone and a domain are not the same thing: a domain can be split into several zones by delegation.
Defined in RFC 1034 §4.2.
Where this appears
The lessons that use this term, and what each is for.
Domain Security FundamentalsZones, delegation and glueFind the two places a domain’s NS records live and say what happens when they disagree.DNS Security PractitionerRunning twoSay what must stay synchronised across two providers, and what DNSSEC adds to that.DNS Security PractitionerHow a secondary stays currentDescribe the transfer mechanism a secondary uses and how it is authenticated.DNS Security PractitionerAn open transferTest a nameserver for open transfer and say what one hands to anyone who asks.Domain Security PractitionerThe briefRead an estate description and list what you still have to find out.