What is DNS? Introduction to Domain Name System. SXSW giveaway!
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- Опубликовано: 19 июн 2024
- Fasthosts Techie Test competition is now closed! Learn more about Fasthosts here: www.fasthosts.co.uk/davidbombal
What is DNS (Domain Name System)? How does DNS actually work? This video shows you practical examples of DNS in real time and includes Wireshark captures showing you actual DNS query and answer messages.
======================
Giveaways:
======================
SXSW Trip: www.fasthosts.co.uk/davidbombal
Wireshark Course: See hidden link in video
SDN Course: See hidden link in video
Linux Course: See hidden link in video
======================
Menu:
======================
What does DNS do? 00:00
Why do we use DNS? 2:10
Analogy of DNS: 4:00
SXSW: 5:25
Practical DNS: 7:30
Lab: 8:20
Wireshark capture of DNS: 9:50
Edit Windows host file: 15:45
Use a Cisco router as a DNS server: 18:22
nslookup IPv4 / IPv6: 23:09
Rogue DNS example: 24:35
Ubuntu DNS server setup (dnsmasq): 25:47
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CCNA content:
======================
Free CCNA content: • Packet Tracer: CCNA Ex...
CCNA course: bit.ly/2PmTVPD
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Dnsmasq setup:
======================
sudo systemctl disable systemd-resolved
sudo systemctl stop systemd-resolved
Edit the /etc/resolv.conf file to contain the following entry:
nameserver 8.8.8.8
Now install dnsmasq
sudo apt install dnsmasq
uncomment these lines:
port=53
domain-needed
bogus-priv
no-resolv
Add your domains below the no-resolv line:
address=/r1.home.com/10.1.1.254
address=/myrouter.home.com/10.1.1.254
Set your public server to Google for example:
server=8.8.8.8
DNS
DHCP
EVE-NG
GNS3
VIRL
Packet Tracer
10x Engineer
CCNA
Cisco Devnet Associate
CCNP Enterprise
CCNP Security
CCNP Data Center
CCNP Service Provider
CCNP Collaboration
Cisco Certified Devnet Professional
Cisco Certified Network Professional
LPIC 1
LPIC 2
Linux Professional Institute
LX0-103
LX0-104
XK0-004
Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!
========================
#dns #sxsw #wireshark 
Наука
Menu:
What does DNS do? 00:00
Why do we use DNS? 2:10
Analogy of DNS: 4:00
SXSW: 5:25
Practical DNS: 7:30
Lab: 8:20
Wireshark capture of DNS: 9:50
Edit Windows host file: 15:45
Use a Cisco router as a DNS server: 18:22
nslookup IPv4 / IPv6: 23:09
Rogue DNS example: 24:35
Ubuntu DNS server setup (dnsmasq): 25:47
======================
Giveaways:
======================
SXSW Trip: www.fasthosts.co.uk/davidbombal
Wireshark Course: See hidden link in video
SDN Course: See hidden link in video
Linux Course: See hidden link in video
======================
CCNA content:
======================
Free CCNA content: ruclips.net/p/PLhfrWIlLOoKM3niunUBTLjOR4gMt_uR_a
======================
Dnsmasq setup:
======================
sudo systemctl disable systemd-resolved
sudo systemctl stop systemd-resolved
#Option 1: Edit the /etc/resolv.conf file to contain the following entry:
nameserver 8.8.8.8
#Option 2:
sudo rm /etc/resolv.conf
echo "nameserver 8.8.8.8" > /etc/resolv.conf
#Now install dnsmasq
sudo apt install dnsmasq
#uncomment these lines:
port=53
domain-needed
bogus-priv
no-resolv
#Add your domains below the no-resolv line:
address=/r1.home.com/10.1.1.254
address=/myrouter.home.com/10.1.1.254
#Set your public server to Google for example:
server=8.8.8.8
Very informative! I appreciate your understanding that some people are just getting into this topic and taking the time to explain how the little things come into play
Thanks for the informative DNS subject material as well as being super polite
Great way to begin the new year, congrats for continuing with the giveaways, is a good way to keep us motivated and continuing learning.
Thank you! Appreciate the support.
Very useful video! Seeing how this process is captured on wireshark clarified the whole process for me. Thank you.
Thank you so much David i have got all three courses however last month I purchased your SDN tutorials from Udemy but still got Linux and wireshark free.
I am so happy...thanks David
I wish you get more sponsors
Thank you for the support Lokesh
OMG thank you so much for the giveaway!!! I Cant believe you are giving away your Linux and Wireshark course!
Enjoy the courses Paulo!
Thank you very much for this content. I've been looking for a good DNS tutorial for a while now!
Thank you! Hope you learn something new :)
Thanks David for another great video! Good job!
I got all the 3 free courses, thank you David for the new learning materials, have a nice week 💙.
Congratulations! Enjoy!
Thanks for the courses and the explanation! very clear David! :D
Thank you Santiago
Excellent David, kept pretty general highlighting the important things. Thanks again for the great information, and regarding the sponsorship of companies for your videos, of course I believe it's a win win for everyone 👍 have a great day and until then.
Thank Jair
Great to see you getting the support of sponsers, David. And so long as they're meeting your standards (ie high quality/no scammers) then it can only be a positive thing, imo!
Thank you John - appreciate the feedback. Been a long journey, but glad it is happening now. One of these days it will be your turn :)
@@davidbombal Haha! That would be nice. Got a loooong way to go but I'm enjoying the journey. Your channel is the gold standard so it's encouraging to see high quality content get rewarded over clickbait. Seems like it was only a month ago you were at 100K and now it's almost 150. You'll be at a million within 18 months at this rate haha.
@@IPvZero Appreciate that John! Don't give up - keep hitting publish :)
Absolutely 👍
Should we go to SXSW, David??? ;)
lol... not until I have reached my goals!
Hey NetworkChuck, thank you for your videos too...
@@davidbombal what is your goals??
Scam site illegal.
@@gbadri1 Well, if David watches Network Chuck, he is doing nothing. absolutely nothing :)
When nothing in life works, just listening to your videos restore hope
Wow, this is fantastic info! Thanks David!
Thank you Kevin
You are a great man ! your RUclips channel is the most valuable in IT
Thank you! Appreciate that compliment!
Absolutely as you have the knack how to explain and teach this stuff
Great video, thank you! I really need to get GNS3 one of these days. It looks so much more robust than packet tracer.
Greetings from the North Caucasus. Thank you very much for your eloquent tutorials.
Your content is very good and informative. Thank you so much.
Thank you very much for the course. Pro David
Best Explanation that i ever seen about DNS👏..Thank You
Thank you
Thanks for sharing this valuable information. Everyday we learn more from you
Thank you. Glad you learned something :)
Thanks again for another great video David
Got more than I bargained for, thanks for building the content.
Really happy to hear that Big Ric.
Excellent explanation, thank you!
Great Video helped me solve many doubts.
Thank you David! Great!
Thank you
Thanks David, your videos has always great details, although I know the topic 😃
Thank you Søren! Appreciate the support 😀
Yo definitely deserve more promos on this channel 👍
Thank you!
Yesss, continue with it!
Great tutorial/explanation! 👍
Thank you Orley
You can teach and clear concepts really good waiting for you ccnp r and s labs .
Thank you!
Thank you David that was good)
Thank you so much David!
Thank you for watching Michael
Thanks for the video David.
Thank you for the continued support G G
Hello David Bombal I just finished my degree in Computer Engineering I am 27 and I want to start my journey on networking industry, where should I start Python or CCNA ?
Keep your fantastic work! cheers
Your an excellent orator bro.. ty
Very informative and well explained video 👍👍
Thank you
That's awesome, I won free course " Linux" ohhh Thank you @David Bombal
Great! Enjoy Yaser!
Amazing video…very indepth
Thanks so much for giveway!
First of all I wanna thank you for all of your videos you provide a lot of valuable information to us.
And I wanna ask a question that for beginner which one is better GNS3 Or EVENG to start for better understanding not for just clear the exam.
Thank you. Both are good and both have advantages and disadvantages. However, if you are new to networking, I would suggest you start with Cisco Packet Tracer - free, easy to use.
Great video thanks a lot
Thank you.. very beautiful 👌 video
Thank you Asral
Great Video David. Love from India 🇮🇳
Thanks a lot!
Thanks for the video , pls tell how do I configure dns server on my router ?
Should I use ip name server (server ip address) or if I want to use independent dns server in my network, then how to configure my router? Pls tell @David sir
Thank you David for SDN give away
I hope you enjoy the course!
Yep, David I always enjoy your courses. Keep on doing the good work
Thank you 👌
Thanks David ..👍
Thank you for watching Rahul
Thank you.
you are amazing
UDP is used by Dynamic Name Systems as their base of communication
Thank you
Hi. David. All your videos are very helpful. Im interested to buy CCNA training you offer above and just wondering if they are same training offered in Udemy and I have it already. Thanks again
My CCNA training courses are on Udemy, so if you have purchased the courses there, don't purchase from somewhere else.
thanks for the free courses
Enjoy the courses Mohammed. Hope you learn a lot.
@@davidbombal Sure , Appreciated
Wow David that's cool technology..
Thank you Ace. You like the Alexa integration?
My computer doesn't talk back to me wish my miss was the same lol David..
@@nemesisshadowlord2026 lol... yes... not sure I like it that Alexa is listening all the time however :(
What are forward and reverse lookup zones ?
3:37 is it google choose nearest data center to us when we request e.g youtube ?
can you have a proposed solution for the protection of a DNS server?
May I please know why ospf use ttl 1 whereas rip and eigrp use ttl 2.
What software do you use to draw the topology ?
GNS3
The picture at the beginning has bus no. 53, what a coincidence. 🙂
Can I do nslookup with a Google Home too?
Yes
Please sir May we wait the course about CCNP enterprise ?
I am slower than others. First I need to publish CCNA.
Ya no laka boet great content!!!!
Baie Dankie!
My first thought at reading the title was "Usually the problem".
lol... great comment
Great Video David - can we chat soon
Did they end up actually holding SxSW ?
53 ports we will use for dbs
just ossom
It is DNS!
brb sending this to FB engineers
Resolving operatic ulnar domain name to address
UK only ?
The SXSW giveaway is only open to UK residents unfortunately, but the free courses are open to anyone (but limited numbers).
I guess the prize giveaways are good for your viewers..
Yes, a lot of people like the courses and I'm sure someone will have a fantastic time at SXSW!
I give answer but "Invalid Captcha Response." message is coming
Are you based in the UK? Unfortunately the main giveaway is only open to UK residents.
the answer is DNS
bruxaria
The sponsor video parts don't age very well
The answer your question is DNS
David, pls note that RUclips has already have lots of ad before the video. Advertising a sponsor is good for you, however it would make boring to watch the videos 😊
Thank you for the feedback Metin.
DNS
Hey buddy. You speak faster than what you show in Wireshark. Try to make it concurrent.
me being in Asia 😭😭😭
Yes... pity that this is only for UK residents 😥 But, did you try to win a free course?
its man in middle you pay for
not for laymen. Too fast for me. I feel like a chameleon on a smartie box. But thank you, i think. I understood the 1st 2 minutes.
why can't you simplify this?
Please continue sponsored videos and giveaways! Everyone wins if possible just provide the PROS and CONS of the product.
Thank you Mariem
AAAA record
do sponsers you need to have more money to give more knowldge to the world
this is bad i liked your previous videos before the holidays they were useful to the point entertaining and i learn from them or review some information a half an hour video and i watched 6 minutes of nothing sorry but you were better before
Sorry to hear that Mostafa. Did you see the menu below the video that shows topics so you can jump to topics of interest? I go deep into the technical content from 8:20
DNS
DNS