Domain Name Vs Zone
Before domain names were invented you needed to type in the ip address for a given website to access it.
Domain name vs zone. The domain name space of the internet is organized into a hierarchical layout of subdomains below the dns root domain. Today domain names act as a placeholder for the complex string of numbers known as an ip address. The domain name space is a hierarchical tree with the dns root domain at the top. A zone is a domain less any sub domains delegated to other dns servers see ns records.
In a dns zone file each line can hold only one record and each dns zone file must start with the ttl time to live which specifies for how long the records should be kept in the dns server s cache. A dns zone is any distinct contiguous portion of the domain name space in the domain name system dns for which administrative responsibility has been delegated to a single manager. 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. Without a domain name there s no way for visitors to access your website.
A dns zone is also an administrative function. What is a domain name. Users can connect to websites using domain names. A domain represents the entire set of names machines that are contained under an organizational domain name.
In most cases you have a 1 to 1 relationship between a domain and a dns zone i e. 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.