Re: Authoritative Resources for Public DNS Pinging

[Mike Hammett <nanog () ics-il net>]

Some people need a clue by four and I'm looking to build my collection of them. 




Someone on Outages was nice enough to send this about someone else's thread: 
https://peering.google.com/#/learn-more/faq 


"Google services, including Google Public DNS, are not designed as ICMP network testing services" 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

----- Original Message -----

From: "Tom Beecher" <beecher () beecher cc> 
To: "Mike Hammett" <nanog () ics-il net> 
Cc: "NANOG" <nanog () nanog org> 
Sent: Tuesday, February 8, 2022 3:01:27 PM 
Subject: Re: Authoritative Resources for Public DNS Pinging 




Are there any authoritative resources from said organizations saying you shouldn't use their servers for your 
persistent ping destinations? 




I'm not sure that an ' authoritative resource ' is really needed. It should be generally understood at this point in 
the internet's life that networks will block / restrict some or all ICMP traffic as they need to. 


On Tue, Feb 8, 2022 at 12:58 PM Mike Hammett < nanog () ics-il net > wrote: 

<blockquote>


Yes, pinging public DNS servers is bad. 


Googling didn't help me find anything. 


Are there any authoritative resources from said organizations saying you shouldn't use their servers for your 
persistent ping destinations? 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 


</blockquote>