Video encyclopedia

Domain Name System


DNS Explained


DNS as Fast As Possible


DNS Namespace


Domains and the Domain Name System


Top 5 Free Public DNS Servers You Must Try 2017

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