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Network Operations teams insist that it is inappropriate to use the term "subdomain" to refer to any mapping other than that provided by zone NS (name server) records and any server-destination other than that. According to RFC 1034, "a domain is a subdomain of another domain if it is contained within that domain". Based on that definition, a ...
This process of using the DNS to assign proximal servers to users is key to providing faster and more reliable responses on the Internet and is widely used by most major Internet services. [4] The DNS reflects the structure of administrative responsibility on the Internet. [5] Each subdomain is a zone of
A network host is a computer or other device connected to a computer network. A host may work as a server offering information resources, services, and applications to users or other hosts on the network. Hosts are assigned at least one network address. A computer participating in networks that use the Internet protocol suite may also be called ...
Some domain name registries, often called network information centers (NIC), also function as registrars to end-users. The major generic top-level domain registries, such as for the com , net , org , info domains and others, use a registry-registrar model consisting of hundreds of domain name registrars (see lists at ICANN [ 24 ] or VeriSign ...
Each delegation confers essentially unrestricted technical autonomy over the allocated space. An area of one or more subdomains that have been delegated for management is called a DNS zone. A zone always starts at a domain boundary to include all leaf nodes (hosts) in the domain or ends at the boundary of another independently managed zone.
This addressing structure permits the selective routing of IP packets across multiple networks via special gateway computers, called routers, to a destination host if the network prefixes of origination and destination hosts differ, or sent directly to a target host on the local network if they are the same. Routers constitute logical or ...
In 1993 the U.S. Department of Commerce, in conjunction with several public and private entities, created InterNIC to maintain a central database that contains all the registered domain names and the associated IP addresses in the U.S. (other countries maintain their own NICs (Network Information Centers) -- there is a link below that discusses Canada's system, for example).
A network domain is an administrative grouping of multiple private computer networks or local hosts within the same infrastructure. [ 1 ] [ 2 ] [ 3 ] Domains can be identified using a domain name ; domains which need to be accessible from the public Internet can be assigned a globally unique name within the Domain Name System (DNS).