ฝัง
- เผยแพร่เมื่อ 10 ส.ค. 2017
- In this movie we go over how DNS work from the client to the server. When we understand how DNS works it becomes much easier to troubleshoot.
This is a sample from our training at ITdvds.com. For complete training please go to itdvds.com
Trust me I have got 7 years of experience as a system administrator and this is the best lecture I have found. Amazing
Salam bro, can you help me find a job?
Who is this guy? This is the way to explain/teach. I found another guy who matches my expectations from a teacher. Excellent....
Exactly...loved this guy
I'll tell you who he is.
He is my hero.
Finally, someone explained this perfectly. I am going to use this to train our service desk.
The best lecture on DNS online a very realistic approach to trace DNS thanks you
Thank you for taking the time to do this video with practical examples. It goes beyond the high level explanation to how some configurations are done in windows
I have been looking at a lot of DNS explanations but this one is by far the best. Thank you!!!
I appreciate your valuable time. I love your detailed elaborations of this course. It really goes a long way in my IT career. Comprehensive, clear, concise, detailed and relevant. Great tutorials 👍👍
Brilliant, Smooth, Intuitive and to the point.
I've only said I love you to my girlfriend and my parents... but I love this man.
Great explanation. Thank you for showing where you find the root and TLD management information.
So helpful! High-level/beginner tutorials are often much more confusing than in depth tutorials
Very clear and perfect explanation of DNS. Thank You...
Wow. He got it. Explain it on live examples and everyone gets it. Thank you!
Very understandable speech. Thank you. You made me understand what my teachers failed to.
Finally someone on TH-cam can explain something properly lol good job
The way you explained is excellent. Great Job Sir.
Best explanation ever had about dns thanks man
Thank you so incredibly much for taking the time to do this
Thanks. The last part about how Windows appends the DNS suffix is very useful to know.
love your detailed elaborations of this course !!thank You
I love to learn the whole process of something. That is how you become great at troubleshooting. Seeing the entire picture. Plus you didn't use some white board to explain it, we actually saw it as we would see it if we did it ourselves.
I would say outstanding technical presentation and thanks for this
Excellent explanation.. Love the way he teaches.
Wow. Excellent and very clear and in depth explanation. Thank you very much. Hats off buddy.
Very informative video, I have never seen in depth, luckily I got and gained knowledge DNS related. Thanks a lot.
The only good video i have found on TH-cam, i logged in just to click like button. Thank You, Sir!
Amazing explanation, this is the way i learn the best
Thank you for not having a disturbing/distracting back music!
Thank you ! Very well explaining and you actually showing us where things are! A+
wow fantastic lecture, i would recommend this to anyone wanting to learn about dns
This is an awesome knowledge video!! And this is a fantastic teacher. Wish I could be in your classroom.
Thanks to you I finally understand DNS
concepts brilliantly explained. thank you!
So brilliant video. It helps to understand the DNS in a more practical way / application level. I will share the video.
Kudos to ITdvds team.
Appreciate the effort to make this video.
explained really well. i think i finally get how it works. thanks
Thank you very much, indeed another best one from you!
Wow - what a great explanation. Thanks!
Thank you great video and very thoroughly explained. I did not lose concentration once going through this video
You are amazing.
You just made my life easier. Thank you
Thank you for great presentation. Excellent.
Thank you so much. Excellent explanation..
Best ever video on Internet about DNS explanation. Who is the speaker ?
Excellent Explaination...loved it.
amazing ground-up tutorial, kudos
Great, well explained. Many thanks
This is the best tutorial.... Cheers!!
Great & helpful video, surely my exam will be easier after this.
THANK YOU. Excellent. Very descriptive.
Superb ..... very clear fundamentals .... excellent
Best lecture.. dns concept is clear now
Great explanations. Thanks.
Amazing, excellent, mind blowing
Wish I would have come across this a few years ago. Anyways its never too late. A very great video. Subscribed.
Awesome video i never seen such
Good exploration
Excellent explaination! 🤝✌️
Awesome explanation!!
I really appreciate your hard work
It was a areally great video!
Thanks!
Great tutorial ... easy to follow 👌
Excellent explanation
This is one of the most pretty 😍 explanation ... really thank you 😊
Very clearly. Thank you sir
Great explanation!!
Excellent video.
thanks, for this great course
Thank you so much for creating the amazing video. It is the best one for DNS understanding. I want to request you one thing if possible. Can you please create a video for Proxy servers and how it works?
amazing work!
Well explained...
Well explained - On point
What an explanation 👏
Excellent !
All good here. Thank you for your explanation 👍
Who decides the DNS TTL value while caching?
Awesome explanation, thank you! One question, I hear of SOA is that like going to the root DNS and the root DNS updates all other DNS Servers with the new IP's when users request a specific IP? does that make sense?
Amazing amazing amazing!
Great presentation !!!
Thank you.
I am sold!
so good !
why i didnt see this early
Correction, putting entries in the host file does NOT input it in any cache.
DNS is always (by default on linux/windows/mac) queried 2nd, the first query will always check your host file first. You can modify the order of lookups on linux by flipping the order within the /etc/nsswitch.conf file, not sure about doing this on windows but it maybe possible in the registry somewhere.
THANK YOU
thank you for this
The best explanation
ipconfig /displaydns
iterative query
recursive query
suffix
Host File
cache
well explained
Amaaazing
I just discovered you! Great explanations!
so cache poison on my local net, a script or website with a pop up which resolves for a set amount of secs this allows via lookup table to access the login screen?
Video for putting your own softs on or is that possible. I can softbox so would like to up load my own softs.
best movie ever
This is awsomeeee
How do we get to know which query (Iterative or Recursive) used for name resolution?
Im studying Azure and this is all relevant.
Hi! In 15th minute, step 8. I did not understand. Why we need to send another request to ITDVD ''dns'' server? Maybe we just send HTTP request to itdvd's web hosting service? Or there is another dns server there?
What is preferred to use as a DNS server? Iterative or recursive and why?
What if my primary dns server is shut down....will its query be resolved by an alternate dns server?
And what if both goes down.
We have two 2008r2 dcs . We are going to demote them,keeping the dns service. Both this dcs are primary and alternate dns servers to clients
In soft One, there is relatively little although I will say soft One has so fantastic features and I tNice tutorialnk it is going places (Rated No 2
What OS are you using? Windows Server? Trying to figure out how to get to DNS Manager screen.
Yes you're correct it's windows server
You need to be on a computer that is set up as a DNS server.
I don't know if installing active directory sets you up for DNS too.
Look that up,, at least now you have somewhere to start
iirc, this is not an iterative query, ISP dns server(dc01 in your video) is a recursive server, that always manages all requests by himself and collects answers. Servers like root, and tld would either forward you or send an error. That is called iterative. Correct me if im wrong
Just Epic Videos hmmm...I agree with this. An recursive query should mean the server would forward the query to the next server and so on. Each server in the chain will await the reply and return the response to the caller. The referral back to the original client part seems inefficient. But, that would make sense in an iterative approach. Still, I am skeptical about this aspect of the video.
In the example how does the dc01 dns server know the IP for the root hints dns server?
Sir how does our dns know that from which root should be given to the ip
Your Internet provider DNS or any DNS servers you use will need to have the root servers configured on it. Once that is done for any recursive queries that come in, it will use the closest applicable root server
I have captive portal website and its extension is a "in". The authoritative name server for that website is a root server. Now an authoritative name server is a server that is giving the record to the client. What i don't understand is how can any website have its authoritative name server as a root server? Cause all the root server is doing is sending the query to a server that can do the job for you. It is not the one giving you the i.p address, but just redirecting you to the right server . Shouldn't the authoritative name server be the websites DNS servers?
you mean its TLD is {.in}?