The idea is pretty interesting and right now I am evaluating whether its a financially feasible thing to do.
Well, I checked at a few domain name registration sites and it doenst sound very costly to start with. However you have to be careful reading their pricing models. It IS misleading.
e.g. when you find a domain at www.networksolutions.com, they say that it costs 10 USD. Fine, that looks cheap and so you move on. When you finally land on the checkout page, you find that its not actually $10, but $29.99. The $10 mentioned at the first page was actually something else. Some private registration thing, but the actual domain name costs you three times that.
Similarly when I was checking this on an Indian registrar http://www.net4.in , their site was advertising that .in domains cost on Rs. 199. Fine, thats pretty cheap actually. I went ahead and when I landed on checkout page there, it turned out that 199 is only the cost for 1st year. Second and third years cost about 4-5 times first year. And therefore, you are lured only because of the first year promotional pricing.
A friend was suggesting earlier to use dyndns for this. The idea was, buy a domain name, buy a customer dns from dyndns guys. Then it would be a job of configuring the dns entries in a right way. So that,
a call to techblog.mydomain.com goes automatically to techraghav.blogspot.com,
and still maintains the url for mydomain.com...
I am not sure if that would work technically or not, but that could be a much cheaper solution. Custom DNS at dyndns.org costs about $ 28 per year. domain would cost about $10 per year. Sounds ok.
Also, I am not sure what kind of dns mgmt freedom is available when I buy web space with some hosting company....
I have posted this dns configuration question to dyndns.org forums also.. lets see how they come back.
Reading about dns records etc.. List of DNS record types - Wikipedia, the free encyclopedia
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