Domain Name Service( 五 )


Zones of ConvenienceIt is tempting to think that an Internet host with a name ending in ".uk" is actually located in the United Kingdom. There is no requirement that this should be so. For example the well known host www.yahoo.co.uk is actually located in southern Germany. In the case of the United Kingdom it is simply necessary to present the organisation that runs the ".co.uk" domain with an IP address (and a suitable sum of money !) and the DNS address will be registered. The top-level administration of the ".uk" domain will only delegate to specifically UK based organisations. Some administrations are distinctly less fussy and a number of "zones of convenience" along the same lines as "flags of convenience" have come into fairly common usage. These are mostly poor third world countries or tiny groups of islands desperate for some hard cash, they also tend to sell un-necessary sets of stamps and coins to guillible collectors. The most common ones seem to be ".cc" (the Cocos-Keeling Islands), ".to" (Tonga) and ".nu" (Niue). At one time both ".is" (Iceland) and ".tm" (Turkmenistan) allowed their top level domains to be used in this fashion, but they now seem to adopt a more rational approach. Some of the blame must attach to Internic who have created some pretty unlikely top-level domains. It is difficult to imagine anybody using ".bv", the allocated top-level domain for Bouvet Island, an uninhabited (an uninhabitable !) Norwegian Dependency about half-way between South Africa and Antarctica whose only claim to fame is that it is the most isolated piece of land in the world.

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