The Internet is, as you may know, a network of computers all connected together. Each computer is identified by an unique number called an IP address. If a computer connects to another computer on the Internet, it's using its IP address to establish the connection. An IP address is composed of 32 bits (a bit is either zero or one), so a valid IP number would be:
00001010 00000000 00000000 00000001To make it more readable these zeros and ones are calculated backed into decimal numbers, which in this case results to:
10.0.0.1
Remembering the IP address of every site on the Internet would be hard task, so that's why DNS was invented. With DNS, every site can be registered to have a linguistical name (like "google.com") which is then mapped to an IP address. This name is called a 'domain name'. Thanks to DNS you can remember a website by its company name or its purpose instead of having to remember a mysterious series of numbers.
To prevent this from happening, an organisation called ICANN (which is install by the USA government) has the authority to enable or disable domain names for use. ICANN has decided for instance that each domain name has an extension which gives away some information on the site hosted: Each country has its own extension while some categories are defined as well. Below are shown some of these "Top Level Domains" (TLDs).
.be - Belgium .nl - Netherlands .com - Commercial .gov - Governmental .edu - EducationalSounds like a perfect world?
No, it sounds more like dictatorship! One organization, under control of the government of the most powerful country in the world, controls who can have a domain name and decides whether you should pay for it or not.
.tv .info .museum .biz
The same applies to the public Internet. There are other organizations besides ICANN which 'authorize' use of other domain names (for instance ".www" as in "my.website.www"), while they are not supported by ICANN. Still, some 'authorization' is required to prevent conflicts in domain names.
Because of the existence of these other standards the Internet is a little bigger as you might see it in normal life. Basically you're missing out if you're only using ICANNs DNS rules.
There are several alternative root domains out there. For instance the Inclusive Name Space combines the ICANN Root and the Public Root.
When using these new DNS settings you can browse to:
http://www.saab/
http://disney.world/
http://www.kia/
http://the.earth/