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Domain Name System

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DNS Explained

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DNS as Fast As Possible

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DNS Namespace

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Domains and the Domain Name System

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The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most prominently, it translates more readily memorized domain names to the numerical IP addresses needed for locating and identifying computer services and devices with the underlying network protocols. By providing a worldwide, distributed directory service, the Domain Name System is an essential component of the functionality on the Internet, that has been in use since 1985.
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    • Function 

    • History 

    • Structure 

    • Operation 

    • DNS message format 

    • DNS protocol transport 

    • Resource records 

    • Protocol extensions 

    • Dynamic zone updates 

    • Security issues 

    • Privacy and tracking issues 

    • Domain name registration 

    • RFC documents