Domain Name System DNS

Domain Name System DNS

This video is about the Domain Name System (DNS), a global system in which user friendly domain names are translated into IP addresses. It outlines what takes place when a client computer needs to contact a web site, including the roles of the Internet Service Provider’s recursive resolver, the root name server, the top level domain (TLD) servers and the authoritative name servers. The video also includes the benefits provided by the DNS distributed architecture.


  1. JadeedStore Support on February 20, 2021 at 10:21 pm

    Great Video.

    Just a little feedback:

    At time 3:25 in video: the sequence of 128 bits can be written as 32 Hexadecimal numbers (and not 8 Hexadecimal numbers.)

    Hope this is helpful.

  2. Vijay Kumar on February 20, 2021 at 10:24 pm

    Thank you for the video.

  3. Dhruv Baria on February 20, 2021 at 10:25 pm

    thanks, finally I understood DNS working after hours of study.

  4. Melih Aydin on February 20, 2021 at 10:36 pm

    thank you so much.

  5. Raksha Rao on February 20, 2021 at 10:44 pm

    Thank you.

  6. Moe Ayoub on February 20, 2021 at 10:49 pm

    I think its a good idea if you follow up on this video by making one that talks about DNS Amplifications attacks, DNS poisoning, and DNSSEC

  7. TechWith Nasir on February 20, 2021 at 10:52 pm

    Thank you so much for this very well explained video!

  8. cr on February 20, 2021 at 10:57 pm

    This is the best video on this topic

  9. S B on February 20, 2021 at 11:07 pm

    I’m a new CS student and your videos are extremely helpful. I would love it if you could make some for comp architecture an operating systems

  10. Scoox on February 20, 2021 at 11:08 pm

    10/10 for presentation and clarity

  11. Koray Tugay on February 20, 2021 at 11:12 pm

    Starts at 3:50

  12. Alexander Nenartovich on February 20, 2021 at 11:14 pm

    Great video, thank you. P.S. I like how the British people pronounce the letter "h", this is epic.