Finally you can use a client to query a whois database. A great freeware program is 'Cyberkit' by Luc Neijens. You can also use 'Cyberkit'. Ping Ping is helpful for testing, measuring, and managing networks. Ping send a packet and wait for its return.
Ping is used by network administrator for diagnostic problems.
So if you aren't a network administrator, you shouldn't use it. However ping is helpful to verify wheter a host is working. Usually ping send 3 packets. Ping the specifed host until interrupted. Resolve addresses to hostnames.