Initially, the success of Internet was not anticipated and hence no provision was made to include other countries. Now because of the overwhelming global success of the Internet, new top level domains are reserved, but not necessarily created, to correspond to individual countries. These national domain names follow an existing international official standard of two letter abbreviations for every country in the world.
Primary Domains " . " Countries
EDU fr
COM in
GOV us
MIL uk
ORG ca
An example of other countries represented with domains include: in India
au Australia
ca Canada
Fr France
UK The United Kingdom
Domains under "in" with net, ernet and CO
Let us discuss our top level domain "in" and its sub-domains. This top level domain is maintained by the National Center for Software Technology (NCST), as they were the first Internet node in India.
This scheme distributes the responsibility of keeping track of all the new additions of computers to the Internet. Within each category or hierarchy, this is done by the designated domain administrator or authority. For example, under the sub-domain "net" is the sub-domain "vsnl", which is responsible for all the hosts they may have e.g. giasbma, giasdl01, etc. VSNL comes under "net" because they are a network service provider. The service or host on which our Terminal accounts reside is "giasbm01", under "vsnl".
An example of a full Internet address under this arrangement is:
xyz@ies.edu
Reading from left to right, this is the mail address for the user known as xyz, on the server known as ies. This server is in the organizational sub-domain edu. This organization is located in the national domain "in" (India).
If the organization has large number of systems, then the organizational domain might also contain sub-domains, each of which contains a number of systems. This is often on a departmental or service basis. VSNL may in the future have thousands of systems connected to their network.
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