Cara setting reject dan drop untuk Ping ke arah Server

Step by step :

1.  Menggunakan status reject

   iptables -A INPUT -p icmp --icmp-type echo-request -j REJECT

   Example:

   [root@support ~]# ping 109.200.11.67
   PING 109.200.11.67 (109.200.11.67) 56(84) bytes of data.
   From 109.200.11.67 icmp_seq=1 Destination Port Unreachable
   From 109.200.11.67 icmp_seq=2 Destination Port Unreachable
   From 109.200.11.67 icmp_seq=3 Destination Port Unreachable

2. Menggunakan status drop

   iptables -A INPUT -p icmp --icmp-type echo-request -j DROP
   iptables -A OUTPUT -p icmp --icmp-type echo-reply -j DROP