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What is "DNS" about?

post #1 of 15
Thread Starter 
Hi all.
I want a simple explanation as to what's a DNS and what it's for.

I've already used Google. Not exactly simple.
I want a brief explanation.
And why is it important?
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post #2 of 15
Domain Name System
OoGhiJ MIQtxxXA
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OoGhiJ MIQtxxXA
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post #3 of 15
DNS is the Domain Name System
Example:.COM,.ORG,.NET
It identifies what type of website is the website.(Sorry)
.GOV government you know .EDU education .COM communication it's important for identification
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post #4 of 15
DNS is the phone book of the internet.

This probably means nothing to you: 67.220.212.115

This probably means something to you: www.overclock.net

DNS turns this: 67.220.212.115 into this: www.overclock.net.

It essentially allows you to assign a name (in this case www.overclock.net) to an IP (in this case 67.220.212.115) so we don't have to type in 67.220.212.115 every time we want to visit overclock.net.

Type 67.220.212.115 into your address bar and see where it takes you. That should pull it all together.
Edited by tubnotub1 - 6/14/11 at 7:44pm
post #5 of 15
Lets say you want to visit google.

1. You Type Google.com and hit Go!
2. Your Browser/PC will ask your dns such as 8.8.8.8 or 8.8.4.4 whats the IP for Google.com
3. lets say Google.com's ip is 192.1.1.1, your browser will go to it and call it Google.com
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post #6 of 15
Domain Name Server

It resolves a domain name (like overclock.net) to an IP address.
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post #7 of 15
Domain Name System.

Top Level Domains: .com, .net, etc. (ICANN Handles these and charges a HUGE fee to become a Domain Registrar [$2500, and must be Verisign Approved]).

But basically DNS changes numerical IP addresses into domain names/urls. So instead of having to type an email to whoever@192.168.0.9 you can type it to whoever@domain.com. Same goes with web browsing, instead of typing 192.168.0.9, you can have a domain for it.
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post #8 of 15
Thread Starter 

Cool!
I understand it a lot better now!
Thanks a bunch guys!
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post #9 of 15
Quote:
Originally Posted by tubnotub1 View Post
DNS is the phone book of the internet.

This probably means nothing to you: 67.220.212.115

This probably means something to you: www.overclock.net

DNS turns this: 67.220.212.115 into this: www.overclock.net.

It essentially allows you to assign a name (in this case www.overclock.net) to an IP (in this case 67.220.212.115) so we don't have to type in 67.220.212.115 every time we want to visit overclock.net.

Type 67.220.212.115 into your address bar and see where it takes you. That should pull it all together.
Couldn't have said it better myself.
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post #10 of 15
basically its a phones address book.

if you want to call you mum you more than likely go to the address book and press the call button on 'mum' rather than putting in the number right?

the DNS does the same when you put a website URL in such as www.overclock.net references an index of IP addresses (the same way a phone does the phone number) and then calls up 67.220.212.115 (assuming the guy up there used OCNs actual IP address)

so yeah, basically
phone number 67.220.212.115
person www.overclock.net
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