[dns-operations] maybe a small tcp flood

Rose, Scott W. scott.rose at nist.gov
Thu Jun 17 12:37:20 UTC 2021


Was it for missing DS RRs?  We saw something similar here when they were 
doing an algorithm rollover and had to pull the DS RR from the TLD. Saw 
a spike of traffic for DS RRs, but over UDP mostly, with some TCP.  They 
slowed down and stopped when the DS RR was replaced in the TLD.

Scott

On 17 Jun 2021, at 4:47, Randy Bush wrote:

> trying to understand what we are seeing, and assume other are seeing 
> it
> too.
>
> tcp query flood for cctlds and sec.cctlds, could be others
> being sent via popular open servers: goog, neustar, ...
> O(100)qps or higher
>
> randy
>
> ---
> randy at psg.com
> `gpg --locate-external-keys --auto-key-locate wkd randy at psg.com`
> signatures are back, thanks to dmarc header butchery
> _______________________________________________
> dns-operations mailing list
> dns-operations at lists.dns-oarc.net
> https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.dns-oarc.net%2Fmailman%2Flistinfo%2Fdns-operations&data=04%7C01%7Cscott.rose%40nist.gov%7C9c43447c41d9414287cb08d93171b9d2%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C637595186785283927%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=KYMkqY6d%2BtUQknmQzOHgQwqch2cIDugM%2Fws%2Bm7jmwFI%3D&reserved=0


=================
Scott Rose, NIST/ITL
scott.rose at nist.gov
ph: +1-301-975-8439
GVoice: +1-571-249-3671



More information about the dns-operations mailing list