[dns-operations] question about a host

[Volker Janzen]

Hi Eliza,

one is the name of a TLD. one.one is a domain name registred under this 
TLD.

You can see the full delegation path with

dig +trace one.one.one.one

As far as I remember there is no other TLD that is a digit word.


Regards,
    Volker


Am 2019-08-14 11:47, schrieb Eliza:
> Hi,
> 
> I found 1.1.1.1's PTR has a interesting host:
> 
> $ dig -x 1.1.1.1 +short
> one.one.one.one.
> 
> Then I query this host:
> 
> $ dig one.one.one.one. +short
> 1.1.1.1
> 
> It can be resolved. why this trick works?
>  but two.two.two.two gets wrong...
> 
> thanks.
> 
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