On Jun 24, 2014, at 12:52 PM, Jim Reid <[email protected]> wrote:

> On 24 Jun 2014, at 17:29, Robert Willmann <[email protected]> wrote:
> 
>> In my opinion it's a pity that there is no reserved domainname for the 
>> private  use.
> 
> A few attempts have been made to (sort of) do this. See RFCs 2606, 6761 and 
> 6762. 

Private name spaces suffer the same collision problem as RFC 1918 IPv4 
addressing.  Company A may create a private name space identical to that of 
company B. 

First, this creates confusion if Company A and Company B must interoperate.

Then, it hits the fan when Company A and Company are merged in some fashion.

Good design insulates from caprice like this.

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