PING cachnhietdonga.com (77.37.53.171) 56(84) bytes of data.
64 bytes from 77.37.53.171 (77.37.53.171): icmp_seq=1 ttl=58 time=9.01 ms
64 bytes from 77.37.53.171 (77.37.53.171): icmp_seq=2 ttl=58 time=7.22 ms
64 bytes from 77.37.53.171 (77.37.53.171): icmp_seq=3 ttl=58 time=7.78 ms

--- cachnhietdonga.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 7.222/8.004/9.010/0.753 ms