PING www.linux.co.kr (211.188.59.18) 56(84) bytes of data.
64 bytes from 211.188.59.18 (211.188.59.18): icmp_seq=1 ttl=51 time=282 ms
64 bytes from 211.188.59.18 (211.188.59.18): icmp_seq=2 ttl=51 time=281 ms
64 bytes from 211.188.59.18 (211.188.59.18): icmp_seq=3 ttl=51 time=281 ms

--- www.linux.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 281.877/282.214/282.802/0.601 ms