Fred Posner writes:
On a targeted attack, APIBAN won’t help. You will see
some benefits
from iptables-api which will block your discovered traffic in iptables
and helping reduce kamailio cpu.
I'm blocking attacks by fail2ban. My APIBAN test would generate syslog
message for fail2ban, but none has been generated. It means that among
the numerous attacks that my SIP proxy blocked by fail2ban, not a single
one was detected by APIBAN. It means that APIBAN was not aware of the
IP addresses of the attackers.
-- Juha