Ping sends ICMP packages from computer to computer.
Review ping statistics.

Use ping to keep active the Internet access:
$ ping www.yahoo.com

Send 1 GB ping to attack/defend
$ man ping

$ apt-cache search ping
$ apt-cache show ping
$ dpkg -l | grep ping
$ sudo apt-get install ping
Output:
Package ping is a virtual package provided by:
  iputils-ping 3:20161105-1
  inetutils-ping 2:1.9.4-2+b1
End of.
Choose one packages from the list and install it.

Usage:
$ ping www.yahoo.com


References:
Guide: Basic networking
Guide: Iproute2
Guide: Net-tools
