On 25 June 2016 all of the Internet Domain Name System's root name servers received a high rate of TCP SYN and ICMP traffic.
This event was large, noticeable via external monitoring systems, and fairly unique in nature
root-servers.org/news/events-of…
This event was large, noticeable via external monitoring systems, and fairly unique in nature
root-servers.org/news/events-of…
On June 25, 2016 at 21:45 UTC DNS root name servers began receiving a high rate of TCP SYN packets in what looks very much like a SYN flood attack, as well as ICMP packets. These packets continued until approximately June 26 00:41 UTC.
All DNS root name server letters received this traffic. DNS root name servers that use IP anycast observed this traffic at a majority of anycast sites.
The source addresses of these particular queries appear to be randomized and distributed throughout the IPv4 address space.
The source addresses of these particular queries appear to be randomized and distributed throughout the IPv4 address space.
The observed traffic volume due to this event was up to approximately 10 million packets per second, per DNS root name server letter. In bandwidth terms it was approximately 17 Gb/s per letter.
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