// Soll (Ausgabe auf lokalem Rechner)
> ./test foohostdoes.notexist
error in getaddrinfo: No address associated with hostname

> ./test google.de
Looked up: google.de
hostname: 173.194.69.94
hostname: 173.194.69.94
hostname: 173.194.69.94

> ping -c1 foohostdoes.notexist
ping: unknown host foohostdoes.notexist

// Ist (Ausgabe auf Server)
> ./test foohostdoes.notexist
Looked up: foohostdoes.notexist
hostname: 178.63.93.72
hostname: 178.63.93.72
hostname: 178.63.93.72

> ./test google.de
Looked up: google.de
hostname: 74.125.79.94
hostname: 74.125.79.94
hostname: 74.125.79.94

> ping -c1 foohostdoes.notexist
PING foohostdoes.notexist.fkrauthan.de (178.63.93.72) 56(84) bytes of data.
64 bytes from server1.fkrauthan.de (178.63.93.72): icmp_req=1 ttl=64 time=0.015 ms

--- foohostdoes.notexist.fkrauthan.de ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.015/0.015/0.015/0.000 ms