ping
| Synopsis | ||
| ping | <host> | Ping a remote host |
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Details | ||
| The ping command sends ICMP PING messages to the remote host given by <host> and prints statistics on the replies received. Pinging is a commonly used technique for testing that a remote host is contactable. However, ping "failure" does not necessarily mean that the machine is uncontactable. Gateways and even hosts are often configured to silently block or ignore PING messages. | ||
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Bugs | ||
| The ping command uses hard-wired parameters for the PING packet's TTL, size, count, interval and timeout. These should be command line options. | ||