digital8 Second Lieutenant
Joined: 29 Sep 2005
Posts: 1002
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Posted: Sat Oct 01, 2005 1:41 pm Post subject: whois |
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whois works like this: first, you put in a domain name. Then, whois checks InterNIC's (the nice guys that register domains in exchange for 70$ in cash, cheque or credit) database.
You see, whenever you register a domain you have to enter a lot of information. Whois can extract this information out of InterNIC's database.
So why is this useful? If you know what is the ISP of your target, you can find out a lot of information about it, such as where it is located, etc'. Normally, users of that ISP would live somewhere nearby, or at least in the same state. Besides, sometimes ISPs will have a country extension, say... .net, but will actually be in, say... Israel. So on normal conditions the extension would be .net.il, but there are exceptions. Whois can find out where this ISP (or any other given server with a domain name) is really located at. |
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