Luckily, manually checking this is not very difficult on ubuntu via a very easy command-line utility known as ping in this lesson, we will explore the capabilities of ping command on ubuntu 1804 lts machine and see what are the commands we can use with ping utility for various tasks. How ping works in ubuntu. Add a rule that tells the iptables firewall to block ping in and out of a server by controlling the icmp requests remove the rule that tells the iptables firewall to allow ping in and out of a server by controlling the icmp requests we have run the commands and procedures mentioned in this article on a ubuntu 1804 lts system.
how ping works in ubuntu