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Old 16-04-2007, 05:47 PM   #1 (permalink)
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Default Difference between http:// & http://www


I know this is a silly question, but I should not fear to accept that I don't know something.

So can anyone explain me why some URLs have only http://domainname & others have http://www or even now-a-days I noticed http://www# where # is some number.

What exactly the system behind such URLs?


Any text, link would be useful.
 
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Old 16-04-2007, 05:55 PM   #2 (permalink)
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Default Re: Difference between http:// & http://www

www is like a subdomain and created by default on the servers.

You can have www1 www2 or whatever you want
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Old 16-04-2007, 06:04 PM   #3 (permalink)
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Default Re: Difference between http:// & http://www

So how this entire website hosting process happens, as it seems u offer webhosting.....so what are the steps?

Client contacts u, register a domain name and web space, then what is the URL allocated to him/her? Is it http://domain.extension or http://www.domain.extension ?
 
Old 16-04-2007, 06:04 PM   #4 (permalink)
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Default Re: Difference between http:// & http://www

Even I want an explanation for this, the original question, that is.
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Old 16-04-2007, 06:16 PM   #5 (permalink)
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Default Re: Difference between http:// & http://www

http:// means the second level domain and primary level domain only
For eg, in yahoo.com, yahoo is the second level domain and com is the primary level domain

http://www.yahoo.com means www is a host/computer located in yahoo.com
Similarly mail.yahoo.com also means a host named mail is found inside yahoo.com

Simple

For more details, google DNS Host and Other Entries
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Old 16-04-2007, 06:48 PM   #6 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by titun
So how this entire website hosting process happens, as it seems u offer webhosting.....so what are the steps?

Client contacts u, register a domain name and web space, then what is the URL allocated to him/her? Is it http://domain.extension or http://www.domain.extension ?
Like i said, by default both www and without www will be setup on the servers. Its upto you, if you want to edit the DNS and use www2 instead of www

A Pic gives a better idea
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Old 16-04-2007, 06:58 PM   #7 (permalink)
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Default Re: Difference between http:// & http://www

Nice stuff here guys. Thanks 4 da info
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Old 16-04-2007, 07:14 PM   #8 (permalink)
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Default Re: Difference between http:// & http://www

Ok..so where and how this DNS system is configured? I mean as the primary job of DNS is, when a user types a website URL, this DNS converts the TEXT URL to its corresponding IP address.

So where is this DNS situated? Is it configured in every server or some central location?
 
Old 16-04-2007, 07:20 PM   #9 (permalink)
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Default Re: Difference between http:// & http://www

Its upto you, some registrar will offer you DNS services and you can use their DNS service

Otherwise, you cant point you Domain to your host. They will have DNS entries on the server. Depending upon the Control Panel at your hosting...you may be able to change DNS on your own.

cPanel - the one you see above wont allow end users to change DNS entries but a reseller can have permission to do so.

DirectAdmin - This allows end user to manage DNS entries but most hosts wont allow you this permission
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Old 16-04-2007, 07:29 PM   #10 (permalink)
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Default Re: Difference between http:// & http://www

nice
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Old 16-04-2007, 07:42 PM   #11 (permalink)
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Default Re: Difference between http:// & http://www

Thanks for the above info.

In most cases, if I wish to visit a website, typing both http://www.domain.ext & http://domain.ext works. That means they have setup the DNS to show that website whether the user enters http://domain.ext or http://www.domain.ext

And in some cases, only http://domain.ext works, but http://www.domain.ext doesnot work. So does this mean in this case the DNS is not configured to show the website when http://www is entered?
 
Old 16-04-2007, 07:50 PM   #12 (permalink)
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Default Re: Difference between http:// & http://www

^^ Yep but somethimes due to DNS Propogation which might take upto 24hrs.....http:// might work while www may not and vice versa
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Old 16-04-2007, 11:14 PM   #13 (permalink)
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Default Re: Difference between http:// & http://www

When you type http://www.daringfireball.net/ into the address bar, it automatically redirects to http://daringfireball.net/. Why does that happen?
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Old 16-04-2007, 11:37 PM   #14 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
When you type http://www.daringfireball.net/ into the address bar, it automatically redirects to http://daringfireball.net/. Why does that happen?
u may do it with 2 methonds, eithert with a simple URL redirector, or with apache mod re-write !!

in linux host u may create a file .htaccess , which can be configure to make sure any visitor which comes to www.domain.net would redirected to domain.net ([http://httpd.apache.org/docs/2.0/mis...uide.html]Know more[/url]) and this is the best way to do it,

and with url redirector simple index.html files, with code,

Code:
<html>
<head>
<meta http-equiv="refresh" content="0; url=http://example.com/urfile.html">
</head>
</html>
will redirect all visitors to a www less domain adrress !!
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Old 17-04-2007, 12:21 AM   #15 (permalink)
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Default Re: Difference between http:// & http://www

Thanx all
nice info for me.
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Old 17-04-2007, 03:11 AM   #16 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by aryayush
When you type http://www.daringfireball.net/ into the address bar, it automatically redirects to http://daringfireball.net/. Why does that happen?
The DNS will have aliases that redirect when u type either www.daringfireball.net or daringfireball.net to daringfireball.net

Check it out
Type nslookup in Command Prompt
Then type daringfireball.net

U will get its IP as 4.71.165.89

Now type www.daringfireball.net
U will get its IP as 4.71.165.89 (same as daringfireball.net)
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Old 17-04-2007, 04:49 PM   #17 (permalink)
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Default Re: Difference between http:// & http://www

www is not neccessary for the site adress but http:// is neccessary if it is http:// server.
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Old 17-04-2007, 08:15 PM   #18 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by saurav_cheeta
u may do it with 2 methonds, eithert with a simple URL redirector, or with apache mod re-write !!

in linux host u may create a file .htaccess , which can be configure to make sure any visitor which comes to www.domain.net would redirected to domain.net ([http://httpd.apache.org/docs/2.0/mis...uide.html]Know more[/url]) and this is the best way to do it,

and with url redirector simple index.html files, with code,

Code:
<html>
<head>
<meta http-equiv="refresh" content="0; url=http://example.com/urfile.html">
</head>
</html>
will redirect all visitors to a www less domain adrress !!
But why go through the trouble of all that redirection?
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Old 17-04-2007, 08:17 PM   #19 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by aryayush
But why go through the trouble of all that redirection?
Some people jsut like to act smart with useless moves LOL
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Old 17-04-2007, 08:26 PM   #20 (permalink)
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Default Re: Difference between http:// & http://www

www =666 ?
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Old 17-04-2007, 08:36 PM   #21 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by sukhdeepsinghkohli
Some people jsut like to act smart with useless moves LOL
If someone like John Gruber does it, there has got to be some reason behind it. And I can bet my money that it will be an intelligent reason, not something as stupid and trivial as trying to act smart.
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Old 17-04-2007, 09:16 PM   #22 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by aryayush
If someone like John Gruber does it, there has got to be some reason behind it. And I can bet my money that it will be an intelligent reason, not something as stupid and trivial as trying to act smart.
Ok, have your doubts...i dont have any
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Old 17-04-2007, 10:38 PM   #23 (permalink)
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Default Re: Difference between http:// & http://www

Quote:
Originally Posted by aryayush
But why go through the trouble of all that redirection?
well the person asked the question needed a solution !! therefore i gave one which i know !!

Now why one would one to go with redirection... to me i had to use one with portal4webhost.com (my site) which is running SMF in php 5 enviroment.. for some reason a SEO mod will only oparate under www stage therefore i used the .htaccess to redirect all http:// requests to http://www ones !! this is just a example... there are few application in some state they would need to oparate under either http://www or under http://....
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