Dns Domain Vs Zone
A domain is a logical division of the dns name space whereas a zone is physical as the information is stored in a file called a zone file.
Dns domain vs zone. Dns records record names. This is because all dns servers that host the zone in a domain or forest has the ability to be a writable copies and becomes the actual start of authority soa of that zone when a specific dc dns accepts a write operation such as a client machine registering or the dc itself updating its srv records. As nouns the difference between domain and zone is that domain is a geographic area owned or controlled by a single person or organization while zone is each of the five regions of the earth s surface into which it was divided by climatic differences namely the torrid zone between the tropics two temperate zones between the tropics and the polar circles and two frigid zones within the. A secondary zone is a read only copy of the primary zone.
In fact a dns zone can contain multiple subdomains and multiple zones can exist on the same server. The name server is authoritative for a particular zone. A fully qualified domain name fqdn includes the zone name whereas a relative name does not. A zone is a domain less any sub domains delegated to other dns servers see ns records.
A zone is simply a portion of a domain. Domain name servers store information about part of the domain name space called a zone. Understanding the difference between a zone and a domain is sometimes confusing. In azure dns records are specified by using relative names.
A dns domain name system zone is a database that contains resource records of a contiguous dns namespace the administrative responsibility for a dns namespace has been delegated to an organization by using the. A common mistake is to associate a dns zone with a domain name or a single dns server. An apex record is a dns record at the root or apex of a dns zone. A dns zone is a distinct part of the domain namespace which is delegated to a legal entity a person organization or company who are responsible for maintaining the dns zone.
A dns zone starts at a domain within the tree and can also extend down into subdomains so that multiple subdomains can be managed by one entity. The zone data is stored in a text file located in this folder c windows system32 dns on the windows server running dns. Dns is comprised logically of domains but physically of zones. A single name server can be authoritative for many zones.
All changes to the zone are made in the primary zone and are replicated to the secondary zones.