PING acoc.co.kr.ip4.bz (217.31.50.242) 56(84) bytes of data.
64 bytes from 217.31.50.242 (217.31.50.242): icmp_seq=1 ttl=60 time=14.9 ms
64 bytes from 217.31.50.242 (217.31.50.242): icmp_seq=2 ttl=60 time=14.7 ms
64 bytes from 217.31.50.242 (217.31.50.242): icmp_seq=3 ttl=60 time=14.9 ms

--- acoc.co.kr.ip4.bz ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 14.783/14.916/14.985/0.137 ms