How Iptables allow or block ping packets on Linux servers

PING (Packet InterNet Gopher) is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network, and to measure the round-trip time for messages sent from the originating host to a destination computer and echoed back to the source.

Blocking PING on server is helpful sometimes, if the server is continue to face any type of DDoS attack by using the PING feature. By using iptables we can simply stop the PING option to and from your server.

We can manage ping by the help of ‘iptables’. The ‘ping’ is using ICMP to communicate. We can simply manage the ‘icmp : Internet Controlled Message Protocol’from iptables.

To know more about the same, please go through Errorlogz website

Thank you.