[AusNOG] Incorrect DNS setup

[Karl Kloppenborg]

Hey Noggers,

Firstly I would like to apologise for going a-wall postal on you all yesterday... and a big thanks to those who off list posted me to discuss last mile setups and what not, and generally giving me a helping knowledgeable hand :)

So heres my post for today:

Very frequently I trawl around and go to peoples websites (especially when I see an email on ausnog with a domain I haven't been to attached to it ;P ) 

I have done this again this morning and it got me thinking, how come a lot of people have these two cases:

A) I navigate to blah.com.au and is goes "can't connect to this server" I append www. to the domain (it ends up being www.blah.com.au) and I get their website.

or 

B)The reverse of this, I navigate to www.blah.com.au and it says "Can't connect to server", but I go to blah.com.au and it is all cool.

What I am wondering is:

A) Why do people leave have these cases?

B) Where did the use of appending www. to the front of things originate from?

C) also I see sometimes www1. or www2. on some websites, can someone explain these to me?


Thanks guys,
Hope your all having a nice monday morning.

Cheers!
Karl Kloppenborg

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