 Ping Tool:
(Ping, originally contrived to match submariners' term for the sound of a
returned sonar pulse) A program written in 1983 by Mike Muuss (who also wrote
TTCP)
used to test reachability of destinations by sending them one, or repeated,
ICMP
echo requests and waiting for replies. Since ping works at the
IP level its
server-side is often implemented entirely within the
operating system kernel and is
thus the lowest level test of whether a remote host is alive. Ping will often
respond even when higher level,
TCP-based
services cannot. |
