[dns-operations] Querying version.bind illegal?

Jeroen Massar jeroen at massar.ch
Thu May 23 14:04:01 UTC 2013

On 2013-05-23 15:58 , Phil Regnauld wrote:
> 	If this were a repeated and automated querying (say, using some company's
> 	web server as a target in Nagios to verify connectivity outside your
> 	network, or even doing regular polling for statistics purposes), you could
> 	argue that it's not very polite if you're not a customer of said ISP and
> 	you didn't ask for permission beforehand [1]
> 	[1] Of course, in the case of an automated measurement project, you can't
> 	realistically go and ask permission from everyone beforehand, but you
> 	may still want to have an informational page explaining what the service
> 	does and why the queries are benign.

Please, do NOT go there. If you are automatically querying somebody
else's service on a regular basis, ASK PERMISSION FIRST.

Yes, doing one query once in a while (eg only once month or so) is
typically quite fine for most operators, they won't be annoyed with that
as heck that is normal behavior; automation is not normal.

The moment though you start automatically querying other people's
services, they will block you or otherwise make sure that you will not
perform that any more.


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