MatheusS How to do it? if your server uses IPtables,use the following; 1) Access your server terminal and run; sudo iptables -A INPUT -p icmp --icmp-type echo-request -j DROP 2) Now run the following; 2.1) Debian/Ubuntu; sudo sh -c "iptables-save > /etc/iptables/rules.v4" 2.2) CentOS/RHEL; sudo service iptables save If your server is using a firewall,use the following; 1) Access your server terminal and run the command; sudo firewall-cmd --permanent --add-icmp-block=echo-request 2) Now run the following command; sudo firewall-cmd --reload
