Survey on the use of IP blacklists for threat mitigation

Ryan Landry ryan.landry at
Tue Jun 16 19:58:29 UTC 2020

J. Hellenthal, thank you for your reply.

I am not in marketing. I represent a team of talented network engineers,
some of which are persons of color and under-represented minorities. I
believe we, as a community, can do better to effect change, and hold each
other accountable to this end. It is a worthy discussion for NANOG to have,
particularly as an industry that has struggled in the areas of diversity
and inclusion.

This may be a great starting point for you on your journey:

To the OP - I express my appreciation for acknowledging and adjusting the
language used in your survey.

- Ryan
(past NANOG Program Committee Member)

On Tue, Jun 16, 2020 at 1:08 PM J. Hellenthal <jhellenthal at>

> Guess we all better start rewriting all of the documentation out there
> because some PC marketing snowflake wants to get extra brownie points and
> attention for classifying a color in RGB into a racial divide for which it
> never originated.
> blacklists are not always deny/block/disallow and conformed of things that
> allow you to take actions whatever your choosing upon their contents and
> your policies.
> What’s next ? redlisting ? Don’t offend the Russians ... blue ? Don’t want
> to offend the police ...
> Leave this crap off the list, it’s not helping anyone.
> --
>  J. Hellenthal
> The fact that there's a highway to Hell but only a stairway to Heaven says
> a lot about anticipated traffic volume.
> On Jun 16, 2020, at 13:27, Ryan Landry <ryan.landry at> wrote:
> In kind, I'd like to encourage the use of terms like permit/accept list or
> deny/block list.
> Respectfully,
> -Ryan
> On Tue, Jun 16, 2020 at 11:33 AM Rachee Singh <rachee.singh at>
> wrote:
>> Hi NANOG community,
>> We are a group of researchers studying the use of IP blacklists as a
>> mechanism to mitigate security threats -- particularly over the IPv6
>> Internet. We would like to understand if and how you use IP blacklists to
>> secure your networks. Please consider taking our short survey:
>> The survey will be anonymous unless you choose to identify yourself.
>> Thanks,
>> Rachee
>> UMass Amherst
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