How DNS works – DNS LOOKUP | DNS forward Look up explained STEP BY STEP with EXAMPLES | domain name

By admin | May 23, 2021 |

How DNS works – DNS LOOKUP | DNS forward Look up explained STEP BY STEP with EXAMPLES | domain name

How DNS works – DNS LOOKUP | DNS forward Look up explained STEP BY STEP with EXAMPLES | domain name
What does DNS Lookup mean?
A DNS lookup, in a general sense, is the process by which a DNS record is returned from a DNS server. This is like looking up a phone number in a phone book – that is why it is referred to as a “lookup”. Interconnected computers, servers and smart phones need to know how to translate the email addresses and domain names people use into meaningful numerical addresses. A DNS lookup performs this function

The basic idea of DNS is that humans can’t easily remember long strings of digits like machines can, but can much more easily remember words. So, when you type in a domain name like www.techopedia.com, the request is forwarded to a DNS server (whether locally or at an ISP), which returns the corresponding IP address. This address is then used by all the computers and routers to channel the request and responses of a user’s session. The result is the user sees web pages as expected or has email show up in an in-box. The two types of DNS lookups are forward DNS lookups and reverse DNS lookups.
other terms related to DNS look are Forward DNS,Reverse DNS (rDNS),Domain Name System (DNS),DNS Server,Domain Name,DNS Record,Domain Name System Parking (DNS Parking)which are taken up in separate video tutorials.

Posted in Domain Names

50 Comments

  1. Mr. Cifh on May 23, 2021 at 7:32 am

    Perfect video but I can’t still understand how resource records works and which servers have them.
    Also, a little clarification: isn’t it an iterative query?
    Still thx a lot man, ^^



  2. Arjun Bhattacharya on May 23, 2021 at 7:34 am

    nice video .. but annoying music



  3. Sonu Jalwal on May 23, 2021 at 7:35 am

    Great video. Thnaks. Why do we need to create reverse lookup zone ?



  4. Totality Works on May 23, 2021 at 7:36 am

    Solid explanation here. Still not what I’m looking for, but great information here.



  5. Deepak Paul on May 23, 2021 at 7:37 am

    great vedio



  6. blackblather on May 23, 2021 at 7:41 am

    thx, saved me a bunch of time. I was just curious why my host game me the option to set my own nameservers, and the more i dug into it, the more confused i got.
    Now it makes a lot more sence. Thanks again



  7. katsunoi on May 23, 2021 at 7:41 am

    great video, thanks for sharing!



  8. Aljodomo on May 23, 2021 at 7:43 am

    Your video is referenced in my computer science class 😀



  9. Alexandra Packer on May 23, 2021 at 7:43 am

    Excellent explanation – thank you. Very clear. I love a good diagram. 🙂



  10. Udayendu Sekhar kar on May 23, 2021 at 7:45 am

    Nice explanation !!



  11. Ayesha Panchavi on May 23, 2021 at 7:46 am

    This is great.Simply explained the process.Thank you very much.



  12. dinesh harmalkar on May 23, 2021 at 7:51 am

    Simple. Thanku



  13. Ben M on May 23, 2021 at 7:52 am

    thanks for the presentation , I am using website service and domain service from http://www.datasoft.ws



  14. jose on May 23, 2021 at 7:53 am

    thanks 🙂



  15. Paul JJ on May 23, 2021 at 7:53 am

    Thanks for the video. Just wanted to double check. I thought that it’s Authoritative query once it’s passed the ISP DNS server?



  16. Petr Knetl on May 23, 2021 at 7:55 am

    Thanks for easy and intuitive explanation 🙂



  17. Nasir Ali on May 23, 2021 at 7:57 am

    Thank you ! very informative video.



  18. lightgorm on May 23, 2021 at 8:00 am

    what no broken indian english? holy… this is something else



  19. Amol Agarwal on May 23, 2021 at 8:01 am

    clear and concise explanation. the best video on dns i found.



  20. SS KASHYAP on May 23, 2021 at 8:01 am

    beautifully explained…lovely



  21. siddharth aggarwal on May 23, 2021 at 8:02 am

    Really helped. Thanks



  22. Brandon Kirschner on May 23, 2021 at 8:04 am

    One of the best DNS videos I’ve ever seen. Great work!



  23. Archit Sharma on May 23, 2021 at 8:07 am

    Good Job! Nice Video



  24. Aainaa Idris on May 23, 2021 at 8:07 am

    Thanks



  25. vimala rani on May 23, 2021 at 8:07 am

    It’s awesome…. Good work. Please post how tcp, udp, icmp protocols are working…. When ping coomands are used to connect to another computer which protocol makes this process easier. Pz share



  26. Jenny Mandl on May 23, 2021 at 8:07 am

    video is great the but the music is really distracting



  27. Anatole C on May 23, 2021 at 8:08 am

    nice thank you very much ! 😀



  28. Hulk DC on May 23, 2021 at 8:08 am

    this is really helpful, please cover all the networking concepts in detail in video series. thanks



  29. chandni Mahajan on May 23, 2021 at 8:10 am

    Thanks for sharing this video. I have quick question . how long chache remain on DNS server?



  30. Victor Danescu on May 23, 2021 at 8:10 am

    Excellent! Very useful! Thx



  31. creativemind363 on May 23, 2021 at 8:11 am

    couldn’t understand the concept after watching hours of videos he crystal cleared it in 6 minutes great video.



  32. MrBat000 on May 23, 2021 at 8:13 am

    Nice video! Thanks



  33. Sajid Ahmed on May 23, 2021 at 8:13 am

    How does the ISP know the address of the root level nameserver?



  34. Pradeep Shenoy on May 23, 2021 at 8:15 am

    Thanks for the fantastic explanation. Much appreciated.



  35. Quim C N on May 23, 2021 at 8:15 am

    My hands are bleeding for how hard I’m clapping you on this video series. Thank you a ton.

    Just a little comment: for me it’s been easier to understand this video by watching on first place the DNS ZONES video. It makes you understand why it starts asking from the right most domain (.com)



  36. Ogunsade Benjamin Adeiyin on May 23, 2021 at 8:18 am

    Great explanation



  37. syed arbaz on May 23, 2021 at 8:18 am

    Amazing



  38. chandrasekhar nadar on May 23, 2021 at 8:20 am

    .com server already knows NS for yahoo.com , then y again query to yahoo.com ?



  39. Isaac T on May 23, 2021 at 8:20 am

    Thanks so much for the visuals. A lot of other videos have flashy videos but your drew the graph and that’s what I needed to see.



  40. Rajiv Kumar on May 23, 2021 at 8:21 am

    I don’t understand why we need dot root server? in this case why ISP recursive request directly go to .com DNS sever. What is benefit of dot root server when it doesn’t know anything



  41. Belen G on May 23, 2021 at 8:21 am

    You explain easy way thank you for share



  42. Einars Dandens on May 23, 2021 at 8:23 am

    Hello vhat open www adiharz.nl



  43. David Dinh on May 23, 2021 at 8:24 am

    Agreed one of the best explanations here!



  44. Thet Malabak on May 23, 2021 at 8:24 am

    Good video. Thank!



  45. Chloe Kimball on May 23, 2021 at 8:26 am

    the best video on DNS on youtube! short, simple and complete



  46. green white on May 23, 2021 at 8:27 am

    Will there be another videos of the series "How DNS works"? Reverse DNS?



  47. Demosthenes G. Pasadis on May 23, 2021 at 8:29 am

    Very well done. Great layered approach. Excellent!



  48. Max Bigras on May 23, 2021 at 8:29 am

    You rock man 👍👍



  49. Mellie Dalton on May 23, 2021 at 8:29 am

    This is great! I’m taking a course and didn’t understand and now I do. Thanks



  50. Almaz Abraha on May 23, 2021 at 8:30 am

    Great video thank you