I’m sure we all sympathize with the workload a DDOS attack imposes, as most of 
us have been there. But I can’t understand why there is so little broadcast 
communication of the attack through multiple channels. 
lists.arin.net<http://lists.arin.net> is rather esoteric. Facebook and Twitter 
are obvious alternative channels that are hard to attack, yet both are silent 
on the subject:

https://www.facebook.com/TeamARIN/
https://twitter.com/teamarin

Google shows only four hits for “arin dos attack march 25 2016”, and those are 
only fragments of the lists.arin.net<http://lists.arin.net> announcement, all 
of which dead end at arin.net<http://arin.net> right now.

It’s creepy that a major chunk of Internet infrastructure can be down for so 
long with so little public notice.

 -mel

On Mar 25, 2016, at 9:57 PM, Bill Woodcock 
<wo...@pch.net<mailto:wo...@pch.net>> wrote:


On Mar 25, 2016, at 9:43 PM, Mel Beckman 
<m...@beckman.org<mailto:m...@beckman.org>> wrote:

I haven’t been able to connect to http://arin.net for several hours
I recall ARIN had a DDoS attack a week or so ago. Does anybody know if this is 
a recurrence?

Yes, it is.  I attach Mark’s notice about it from this afternoon.

                               -Bill



Begin forwarded message:

From: ARIN <i...@arin.net<mailto:i...@arin.net>>
Subject: [arin-announce] ARIN DDoS Attack
Date: March 25, 2016 at 1:31:34 PM PDT
To: arin-annou...@arin.net<mailto:arin-annou...@arin.net>

Starting at 3:55 PM EDT on Friday, 25 March, a DDoS attack began against ARIN. 
This was and continues to be a sustained attack against our provisioning 
services, email, and website. We initiated our DDoS mitigation plan and are in 
the process of mitigating various types of attack traffic patterns. All our 
other public-facing services (Whois, Whois-RWS, RDAP, DNS, IRR, and RPKI 
repository services) are not affected by this attack and are operating normally.

We will announce an all clear 24 hours after the attacks have stopped.

Regards,

Mark Kosters
Chief Technology Officer
American Registry for Internet Numbers (ARIN)

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