haha you're right !
here is the configuration :
in /etc/fail2ban/jail.local :
[http-get-dos]
enabled = true
logpath = /var/www/vhosts/*/logs/access_log
filter = http-get-dos
maxretry = 200
action = iptables-multiport[name=http-get-dos, port="http,https,7080,7081", protocol=tcp]
findtime =...