Edit: /etc/fail2ban/action.d/nftables-allports.conf (383B)
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
# Modified: Yaroslav O. Halchenko
# made active on all ports from original iptables.conf
# Modified: Alexander Belykh
# adapted for nftables
#
# Obsolete: superseded by nftables[type=allports]
[INCLUDES]
before = nftables.conf
[Definition]
type = allports