Por ejemplo mira :
-A f2b-asterisk-udp -s 185.16.38.105/32 -j REJECT --reject-with icmp-port-unreach able
-A f2b-asterisk-udp -s 150.136.223.242/32 -j REJECT --reject-with icmp-port-unrea chable
-A f2b-asterisk-udp -j RETURN
-A f2b-issabel-gui -s 190.66.223.XX/32 -j REJECT --reject-with icmp-port-unreacha ble
-A f2b-issabel-gui -j RETURN
-A f2b-postfix -j RETURN
-A f2b-postfix-sasl -j RETURN
-A f2b-sshd -s 218.92.0.172/32 -j REJECT --reject-with icmp-port-unreachable
-A f2b-sshd -s 61.177.172.104/32 -j REJECT --reject-with icmp-port-unreachable
-A f2b-sshd -s 218.92.0.247/32 -j REJECT --reject-with icmp-port-unreachable
-A f2b-sshd -s 218.92.0.145/32 -j REJECT --reject-with icmp-port-unreachable
-A f2b-sshd -s 218.92.0.133/32 -j REJECT --reject-with icmp-port-unreachable
-A f2b-sshd -s 115.159.151.171/32 -j REJECT --reject-with icmp-port-unreachable
-A f2b-sshd -s 103.246.240.30/32 -j REJECT --reject-with icmp-port-unreachable
Esta es la IP bloqueada por acceso a la WEB errados
-A f2b-issabel-gui -s 190.66.223.XX/32 -j REJECT --reject-with icmp-port-unreacha ble
Quiero hacer lo que hiciste pero agregando este reglón que tipo de proceso es ? f2b-issabel-gui