Query Record Domain Name System. DNS which stands for Domain Name System is used as the medium to translate domain names to their respective IP addresses when a client initiates a request query. To improve efficiency reduce DNS traffic across the Internet and increase performance in end-user applications the Domain Name System supports DNS cache servers which store DNS query results for a period of time determined in the configuration time-to-live of the domain name record in question.
To improve efficiency reduce DNS traffic across the Internet and increase performance in end-user applications the Domain Name System supports DNS cache servers which store DNS query results for a period of time determined in the configuration time-to-live of the domain name record in question. When the local DNS server receives the query and the requested domain name is found it will return the result. DNS is a directory service that provides a mapping between the name of a host on the network and its numerical address.
Typically such caching DNS servers also implement the recursive algorithm necessary to resolve a given name starting with the DNS root through to the authoritative name servers of the queried.
Domain Name System or DNS converts domain names into numbers called IP addresses. 3600 IN A 192021. Enter any Valid URL. If the requested address isnt there it will look for a Domain Name System server in the local area network LAN.