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Thread: www vs. vw

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    www vs. vw

    http://vw.indiana.edu/sackler03/

    I've been referred to this page and am puzzled/fascinated by the prefix.

    "VW"?

    It works, but when did VW come into being, and what does it mean?

    I'm familar with WordWideWeb, and that's about it.

  2. #2
    KTYorke
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    Re: www vs. vw

    I went to http://vw.indiana.edu to see that VW = Virtual World.
    Got me as to how they got it though <img src=/S/shrug.gif border=0 alt=shrug width=39 height=15>
    have fun

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    Re: www vs. vw

    The VW is a sub-domain of the indiana.edu domain.

    If you take for example, http://cbc.ca, this is the main CBC domain. Then some cities have their own sub-domains to show local news, etc.

    Try http://toronto.cbc.ca, http://ottawa.cbc.ca or http://vancouver.cbc.ca

    These will take you to the Toronto, Ottaw and Vancouver homepages, respectively.

    You can call the subdomains pretty much anything you want. Believe it or not, www is a subdomain as well. It's just that most people use www for their web servers.

    Does that clear things up a bit?
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    Re: www vs. vw

    > The VW is a sub-domain of the indiana.edu domain.

    Interesting. The sub-domain appears to the left(?) er, what I'm trying to say is that the sub-domain appears higher in the naming hierarchy, an odd aspect for a 'sub".

    It is just my general lacl of knowledge and poor perception, I'm sure.


    I came across another one today - http://wolfwares.com/General



    >Does that clear things up a bit?

    Yes, thank you. Coupled with my mystery was the hunch that someone, somewhere, has mis-typed www as vw.

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    Re: www vs. vw

    > Got me as to how they got it though

    Bryan has solved the mystery.

    Here's another one - how come, then, people don't just grab cool domains WITHOUT the www, such as http://mcdonalds.com (don't go THERE, you'll be blinded by vermillion!)

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    Silver Lounger Bruce K's Avatar
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    Re: www vs. vw

    I am not sure how this is set up, but in many cases the 'www' is not necessary. My domain is reachable with or without the 'www' and I did nothing extra when setting this up.

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    Re: www vs. vw

    When you connect to a web server you specify an IP address (or name) and a port number. It is the port number of 80 that ensures you connect to the Web server and not to (say) mail or telnet - which have their own port numbers.

    In the early days of the web it was common for the same IP Address to be used for Mail and Web access, either using different ports on the same system or redirection at the firewall. So you could have had a web server at http://company.com and sent mail to StuartR@company.com.

    If you own the Company.com name then you also own all the sub names below it, you can create additional names like ftp.company.com, or www.company.com or mail.company.com and people often did this when they wanted to direct the traffic to different servers. At one time we used to use web.company.com for web sites, but this never caught on.

    The use of www.company.com is just a convention that has developed to help people find web sites, it is not necessary and many web sites use other names. For example, when DEC created the first search engine it was at altavista.digital.com. At that time www.altavista.com was owned by another company and they started getting lots of hits on their web site!

    StuartR

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    Re: www vs. vw

    > you also own all the sub names below it,

    Ah! I am used to "below" meaning less-significant, and indicated by variations at the right-most end of a string. Your examples show that "below" variations take place at the left-hand end of a string. Therein lies some of my confusion.

    Thanks.

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    Re: www vs. vw

    Ok, here it is simple., I host 40+ domains from my apt. Here's a working example of my main domain:

    www.thewolfmans.com - 66.93.85.229
    thewolfmans.com - 66.93.85.229
    music.thewolfmans.com - 66.93.85.229
    mail.thewolfmans.com - 66.93.85.229

    The difference... in my DNS, I have 'no pre', www, music, and mail pointing to the same address, then in my httpd.conf (linux) each prefix has its own directory.

    ie: music--> /usr/local/apache/htdocs/music
    www -->/usr/local/apache/htdocs
    (no pre)-->/usr/local/apache/htdocs
    mail -->/use/local/apache/htdocs/phpgroupware

    Everything goes to the same ip addy, just points to different directories on that server....
    Mike Wolfman
    Jack of all, Master of none
    Bow before me, for I am root.
    <IMG SRC=http://www.wopr.com/w3tfiles/112673-wolfsig.jpg>

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    Re: www vs. vw

    OK. That's enough. Don't get technical on me (grin)


    >thewolfmans.com - 66.93.85.229

    I tried this in Mozilla, both the alphabetic and the numeric references; both work (of course!), but it was keen to think of you as "Living at 66.93.85.229" as an absolute address. There's a real computer out there that spoke to me! Rather like meeting the actors in the dressing room after the show.



    >ie: music--> /usr/local/apache/htdocs/music

    And this seems to be back to my original concept of hierarchy - that subdivions (WITHIN your server) are indicated by less-significant entries at the right-hand end of the string. If that is so, then I must get used to having least-significant entries at BOTH ends of a full web address. It is beginning to make sense, in the sense that , for example, ".ca" represents canada, so "on.ca" is a "subdivision" of Canada, to wit, Ontario, and "gov.on.ca" is, well, Rule18 kicks in. 'nuff said.


    > Everything goes to the same ip addy, just points to different directories on that server

    Can I therefore think of a beige box as a "unit", so that divisions within the beige box are the property of the owner of the box, hence directories established on the Right-hand-side, whereas things outside/above the beige box are NOt the property of the owner of the box, so that the hiererchy is to the left-hand side? I'm probably making it muddier than it really is in trying to build a mental picture of what goes on. I'm the guy who calculates how many times each piston stops and starts again when I'm tarvelling at 100Km/hr in fifth gear.


    >Bow before me, for I am root.

    That's moot, but PLEASE don't call me "Simple" again (very big grin)

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    Re: www vs. vw

    <hr>Can I therefore think of a beige box as a "unit", so that divisions within the beige box are the property of the owner of the box, hence directories established on the Right-hand-side, whereas things outside/above the beige box are NOt the property of the owner of the box, so that the hiererchy is to the left-hand side?<hr>
    Not quite sure I understand this, but hey, that's never stopped me before <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

    The first part, seems to make sense. But the second half doesn't to me.

    The domain name, and sub domains are all owned by the same entity (person or company) and they may or may not reside on the same beige box (although more and more are becoming black boxes no pun intended) Here is an example. I belong to an Access Developer's mailing list hosted by Database Advisors, Inc. Their mailing lists are hosted at databaseadvisors.com (one beige box) and their web server http://www.databaseadvisors.com is on another server (in a completely different city I think.)

    If you put http://databaseadvisors.com into your web browser, you will get to a different page than if you punch in http://www.databaseadvisors.com They the databaseadvisors.com domain and have split it into two separate parts the www sub-domain and the main domain.

    Think of domains and sub domains like a Proper name.

    Think of a domain (databaseadvisors.com) as a last name (Greaves). It's pretty generic and can describe a bunch of places (people). Now add a sub-domain to the left of the domain (www.databaseadvisors.com). This becomes more specific just like adding a first name (Chris) to the left of a last name.

    Clear like mud?
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    Unfortunately common sense isn't so common!!
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    Re: www vs. vw

    This is much, much simpler than you think. Your system asks one of the root servers whether it knows the address of www.wopr.com or where it can find the server that does; the reply is, here is the server that knows about .com domains, ask it. It then asks the server at that address (the zone server) whether it knows the address of www.wopr.com or where it can find the server that does; the reply is, here are some servers that knows about wopr.com, ask them. (Those are the name servers listed in the whois for wopr.com.) Your system then asks the server at that new address whether it knows the address of www.wopr.com or where it can find the server that does, etc., etc., etc.

    The above is why there is so much caching. So the first step for each system that receives an inquiry is to check its caches and see if it has the answer (and if it hasn't expired yet).

    The entire system is (at least in theory) delegated: central control is only exercised over the root. Administration of the "top level domains" (e.g., com, uk) is delegated, and the parties to whom they are delegated control registration of "second level domains." The owners of the second level domains then do what they will with subdomains of their domains. (In many jurisdictions, there is a policy that the second level domain is tied to the top level domain, as in com.au or ac.uk.)

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    Re: www vs. vw

    > Think of a domain (databaseadvisors.com) as a last name (Greaves).

    Thanks Brian. It does make sense that way. I think i was confusing "locality to the right" as in Paths with "locality to the left' as in Domains.

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    Re: www vs. vw

    > This is much, much simpler than you think

    Jefferson, you are correct. When I don't understand soemthing I start by assuming that because *I* don't understand it, it must be complex.

    Thanks for your portrayal of the 'activities" behind the scenes.

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