DomainName in a strict sense is that part of an internet domain, which comes right left after the dot left to the TopLevelDomain up to the next dot, if any.
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* In a given URL http://c2.com/cgi/wiki?DomainName the TLD is 'com' and the DomainName is c2.com denoting the server called c2 within the domain of .com
* If there would be a www.c2.com than www would be that server that handles HTTP-requests on the c2.com domain
* In a given e-mail address superuser@c2.com, the DomainName of that e-mail adress is c2.com
(these sentences do not end with a dot on purpose) --ManorainjanHolzapfel 10/2014

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CategoryAddress