There are public and commercial offerings for "DNS based protection".
e.g. 9.9.9.9 automatically generates NXDomains for suspected malicious
DNS Names even in their free service.
They have a page where you can check if you have been blacklisted (see
https://www.quad9.net/de/result)
On 4/20/22
a paid service , others
include it and all are required to block the agcom,CNCPO etc requests.
Brian
From: NANOG On Behalf Of Antonia
Affinito
Sent: Wednesday, April 20, 2022 11:07 AM
To: nanog@nanog.org
Subject: NXDOMAIN Resolvers
Good morning,
I am currently analysing the DNS resolvers
On Wed, Apr 20, 2022 at 11:00 AM Antonia Affinito <
antoniaaffinit...@gmail.com> wrote:
> Good morning,
> I am currently analysing the DNS resolvers (local and public ones) in
> terms of protection and performance (in particular their speed).
> I noticed that, in case of a malicious domain name, s
On Wed, Apr 20, 2022 at 8:39 AM William Herrin wrote:
> On Wed, Apr 20, 2022 at 8:00 AM Antonia Affinito
> wrote:
>>
>> I noticed that, in case of a malicious domain name, some local resolvers
>> send an NXDOMAIN and others a courtesy page address. Do you know if the
>> resolvers (for example
On Wed, Apr 20, 2022 at 8:00 AM Antonia Affinito <
antoniaaffinit...@gmail.com> wrote:
> I noticed that, in case of a malicious domain name, some local resolvers
> send an NXDOMAIN and others a courtesy page address. Do you know if the
> resolvers (for example TIM, Wind or Fastweb) can return an N
Good morning,
I am currently analysing the DNS resolvers (local and public ones) in terms
of protection and performance (in particular their speed).
I noticed that, in case of a malicious domain name, some local resolvers
send an NXDOMAIN and others a courtesy page address. Do you know if the
resol
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