what happens when zeit receives a request, but the max connections have already been used?
read the source code and find out
or test it
it probably does nothing
if you try and allocate another connection, and all of the connections allocated, it'd be a slow path if it tried to free an existing connection
and make ddos of cpu even easier
it's more likely that some regular task will go and free connections
LoL -  iOS Snapchat app - responsible for the added NTP traffic as per Nanog
http://mailman.nanog.org/pipermail/nanog/2016-December/089590.html
also : https://community.ntppool.org/t/recent-ntp-pool-traffic-increase/18
oh wow