[dns-operations] new public DNS service: 9.9.9.9

[Phil Pennock]

On 2017-11-17 at 09:26 +0300, Ken Peng wrote:
> https://gizmodo.com/new-dns-service-launched-by-ibm-vows-to-keep-your-brows-1820508262  
> 
> the IP addr is nice: 9.9.9.9
> 
> not good route here from Asia.

Looks like these PCH DNS servers honor id.server in the chaos zone.

dig +norec -c chaos -t txt id.server @9.9.9.9

Those look like IATA codes in the hostnames, which should at least tell
you roughly where your queries are going to and will give you a ballpark
estimate for what latency might optimally be, if you have good routes.