STOP YOUR COMPUTER FROM ANSWERING TO PING

Here is is a simple step designed toprevent your computer from responding to ping.

echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all

After running this, you will not receive a reply if pinged from other computers. To reset the settings and turn the default settings on, simply type the following command:

echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all