ICANN opens up Pandora's Box of new TLDs

Marshall Eubanks tme at multicasttech.com
Fri Jun 27 16:48:50 UTC 2008

Dear Lou;

On Jun 27, 2008, at 12:21 PM, Lou Katz wrote:

> On Fri, Jun 27, 2008 at 12:13:10PM -0400, Marshall Eubanks wrote:
>>>> Well, I guess this shoots in the foot Microsoft's name server best
>>>> practices of setting up your AD domain as foo.LOCAL, using the  
>>>> logic
>>>> that .LOCAL is safe because it cannot be resolved by the root name
>>>> servers.
>>>> Who wants to be the first to try to register *.local?
>>>>> They should have been following RFC 2606.
>>>>> Regards
>>>>> Marshall
>>> Thinking about it a little more, what about the common use of
>>> 'localhost.localdomain' for in most versions of *nix? I  
>>> can
>>> just imagine the chaos that registering a *.localdomain TLD will
>>> cause.
>> .localhost is already reserved through RFC 2606, so this should not  
>> be
>> a problem. To quote :
>> The ".localhost" TLD has traditionally been statically defined in  
>> host
>> DNS implementations as having an A record pointing to the loop back  
>> IP
>> address and is reserved for such use. Any other use would conflict
>> with widely deployed code which assumes this use.
>>> Methinks it is time to update RFC2606 to reflect common practices
>>> before
>>> the new ICANN policies take effect.
>> If you can think of a list, it probably would...
> Having had the need to construct a few TLDs for internal use, I hope  
> that some
> new RFC will address this and reserve some  
> (e.g. .internal, .internal# (where # is
> any fully numeric string), .local)? I really don't care what they  
> are called,
> but I do need more than one.

There are 4 already,
.test .example .invalid .localhost

. I suspect that .local should also be reserved, which would make 5.

It seems that .internal# should just be blocked, not reserved. Before,  
the feeling was that
the best blockage was a reservation, but as I read the ICANN  
presentation, if .internal
was reserved, .internal# could be blocked too without an explicit  


>> Marshall
>>> Jon
> <snip>
> -- 
> -=[L]=-
> Helping to interpret the lives of the animals.

More information about the NANOG mailing list