[dns-operations] DNS over TCP query uptick with iOS 13?

David opendak at shaw.ca
Fri Oct 4 14:20:23 UTC 2019


We have recently observed an uptick in clients doing DNS queries over 
TCP that started around the release date of iOS 13 and has grown since 
then. Most of the qnames seem to be Apple related which points in that 

Has anyone else seen the same in their environment?


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