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dns

 

Definitions from the Web

DNS (Domain Name System)

Description:

DNS, short for Domain Name System, is a crucial component of the internet infrastructure. It serves as a hierarchical decentralized naming system that translates domain names, such as example.com, into IP addresses, allowing computers to locate and communicate with each other over the network.

Senses and Usages:

Sense 1: Internet Protocol (IP) Address Translation

DNS provides the functionality of translating domain names to their corresponding IP addresses. For example, when a user types "www.dictionary.com" in a web browser, the DNS server retrieves the IP address associated with that domain, enabling the browser to establish a connection and load the website.

Sample Sentence: The DNS resolution process ensures that users can access websites by simply entering the domain names into their browsers.

Sense 2: Name Server Administration

DNS is also responsible for managing and administering name servers, which are the fundamental building blocks of the Domain Name System. Name servers maintain information about domain names and their corresponding IP addresses, ensuring efficient and accurate resolution of requests.

Sample Sentence: System administrators need to configure and maintain name servers to ensure reliable and fast DNS resolution for their networks.

Sense 3: DNS Cache

DNS caching involves storing recently accessed domain name-to-IP address mappings on a local device, such as a computer or a router. By doing so, subsequent requests for the same domain can be resolved faster, reducing the latency and improving overall efficiency.

Sample Sentence: Clearing the DNS cache can resolve certain network connectivity issues and let the system obtain updated DNS records.

Sense 4: Local DNS

Local DNS, or a local domain name server, is a DNS server specifically configured and tailored to serve a local network. It primarily handles DNS queries from devices within the network, offering faster response times and increased control over the resolution process.

Sample Sentence: Setting up a local DNS server allows organizations to efficiently manage internal network resources and ensure seamless access to local services.

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