Network packet generation tool/ping utility.
# To ping a specified host using ICMP if the user is allowed to, otherwise using TCP:
nping <example.com>
# To ping a specified host using ICMP assuming that the user is allowed to do so:
nping --icmp --privileged <example.com>
# To ping a specified host using UDP:
nping --udp <example.com>
# To ping a specified host on a given port using TCP:
nping --tcp --dest-port <443> <example.com>
# To ping a certain number of times:
nping --count <10> <example.com>
# To wait a certain amount of time between each ping:
nping --delay <5s> <example.com>
# To send the request over a specified interface:
nping --interface <eth0> <example.com>
# To set the Reserved/Evil bit in sent packets:
nping --evil <example.com>