As usual, quality lecture from my favorite teacher here in youtube :). Thank you so much Mr. Sunny for always sharing with us your knowledge. The way you explain things is superb!
IM SO THANKFUL FOR GODS INCREDIBLE DECISION TO GIVE BIRTH TO A GENIOUS AND AMAZING PERSON LIKE YOU sunny you are my sunshine thank you for these perfect videos im addicted
Sir, thank you very much for explaining so clearly. I have been doing dns cloud infra setup for a client without even knowing the difference between recursive and iterative query....
Really great video, I must say! I only have one thing to say, that host becomes before the DNS cache (if you already have something in cache, and you write same domain name in the host file, but with different ip, the computer listens to the host file first).
Very clear. Thank you. My question to you is: what is my local dns in my home network? In my home network I only have a pc and router. How does the isp dns server fit into your schematic? How do I avoid the isp dns server completely so that they cannot spy on me. If I use vpn, who is making the request to resolve the domain name to an ip address? Is it my the IP address my isp assign to my modem, or my vpn ip?
Beautifully explained except one Big Mistake, you've Altered the Definition. Iterative query is between a DNS Client and its local DNS Server. Recursive Query is between Local DNS and Other DNS.
Hi Sunny, very clear and concise video. Quick question,the initial root domain name lookup is done by the router of the ISP on behalf of the local router isnt it?
Only if you use the ISP´s caching dns as a forwarder. If you are using root hints (which is the default) everything happens exactly as Sunny told you. It could be faster to use the caching server of the isp (or another caching dns provider like 8.8.8.8) as a forwarder