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DNS client

DNS client

(also DNS resolver)

DNS client definition

A DNS client is a component or service that resolves DNS domain names into IP addresses by sending name-resolution queries to local and remote DNS servers. Usually, a DNS client is a computer that runs the DNS client service for a specific network. It resolves hostnames or DNS domain names into IP addresses. That means that it can access and see what a domain name’s IP address is. A DNS client can access a host’s IP address by sending a request to the DNS server. After it receives the request, the DNS server will answer the request by sending the host’s IP address. A DNS client can resolve queries locally by using cached data that it has gathered from previous queries. If the DNS client does not have cached data on a certain request, it then sends out a query to the appropriate remote server to obtain it. Using a DNS client is also necessary if a remote host uses a dynamic IP. The Dynamic IP will change every time the remote host logs on to the internet, and a DNS client can get its new IP address every time it changes.

See also: DNS query, dynamic IP

DNS client benefits

  • It can show the IP address of a certain domain name.
  • With it, you can get access to IP addresses even from hosts that use a dynamic IP.
  • Domain names are easier to remember than IP addresses, so it’s better and easier to resolve domain names than it is to resolve IP addresses.
  • A DNS client can resolve domain names by sending queries to both local and remote DNS servers.

Further reading

Ultimate digital security

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