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Domain name system
The Domain Name System (DNS) is a distributed naming system for computers, services, or any resources connected to the Internet or private network. DNS translates easy-to-remember domain names to IP addresses, allowing browsers and applications to locate internet resources. It works by mapping domain names to IP addresses through a hierarchical system and stores information in DNS records distributed across servers worldwide.
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Introduces the Domain Name System as a distributed naming system for computers, services, and resources online.
Shows examples of IP addresses: a 32-bit IPv4 address (192.248.56.21) and a domain name (www.jfn.ac.lk).
Discusses how DNS functions, referencing a source on DNS mechanics and a diagram illustrating DNS recursion.
Describes DNS records including IPv4 and IPv6 addresses, CNAME for aliases, and mapping domains to transfer agents.
Covers connecting to the DNS zone and opens the floor for questions regarding the DNS presentation.
Domain name system
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- 3. DNS is thedistributed naming system for computers, services or any resources connected to the Internet or a private network
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- 12. This record return 32bitipV4 Address
- 13. This record return 128bitipV6 Address
- 14. Alias of onename to another CNAME
- 15. Map a domainto a list of massage transfer agents for that domain
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