Nginx hang and do not respond with large number of network connection in FIN_WAIT state

[gnusys]

Can multi_accept be on cause this?

I have now set multi_accep to off and set up the Nginx again as a reverse
proxy. The attack is not ongoing now, so can't tell immediately if that
setting helps/not

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,282613,282646#msg-282646