Disable ping:
Code is as follows
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
Allow ping:
Code is as follows
echo 0 > /Proc/sys/net/ipv4/icmp_echo_ignore_all
Firewall /etc/sysconfig/iptablesAdd
-A INPUT -p icmp -m icmp --icmp-type echo-request -m state - -state NEW -j ACCEPT
/etc/init.d/iptables restart
iptables -L -nv 7 588 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 State NEW icmp type 8
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