Domain Name Server Architecture
It associates various information with domain names assigned to each of the participating entities.
Domain name server architecture. A method and apparatus for translating a domain name representing a telephone number into a network protocol address includes a domain name server architecture containing logic responsive to a telephone number domain name the telephone number domain name representing the country code area code exchange or subscriber number of a subscriber apparatus telephone number. Every domain has minimum one authorized dns server. The domain name system dns architecture was designed for the internet as a hierarchical and distributed database system to resolve the internet s ip addresses from their corresponding domain names and vice versa. The selected root dns sends the list of ip addresses of the top level domain name servers that deals with the eu domain.
The root name server can also contain some hostname to ip address mappings. The domain name system dns is a hierarchical and decentralized naming system for computers services or other resources connected to the internet or a private network. 2 3 1 public facing name server an authoritative name server is public facing if it responds to dns queries from an external network. 2 3 name server exposure authoritative servers are classified according to the following exposure levels.
Since the total number of domain translations is too much for any one server each server may redirect request to other name servers or delegate responsibility for a subset of subdomains they are responsible for. This system employs the client server model and the knobs of database are the name servers. The dns architecture consist of the following. To understand the domain name structure you really need to understand the problem the structure was meant to solve.
Icann accepted the installation of idn country code domain. These servers do most of the work in the dns system. Most prominently it translates more readily memorized domain names to the numerical ip addresses needed for locating and. The domain name structure and domain name system were developed to organise and find the ip addresses of computers on large distributed networks.
The client machine sends a request to the local name server which if root does not find the address in its database sends a request to the root name server which in turn will route the query to an intermediate or authoritative name server. A name server is a computer designated to translate domain names into ip addresses. It is usually located in an agency s dmz but may reside elsewhere. Dns name server functions name server architecture and general operation page 1 of 3 the three major functions of a name system are creating a name space performing name registration and providing name resolution services.