PING hdest.cn (104.21.46.221) 56(84) bytes of data.
64 bytes from 104.21.46.221 (104.21.46.221): icmp_seq=1 ttl=59 time=4.95 ms
64 bytes from 104.21.46.221 (104.21.46.221): icmp_seq=2 ttl=59 time=4.81 ms
64 bytes from 104.21.46.221 (104.21.46.221): icmp_seq=3 ttl=59 time=4.79 ms

--- hdest.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.792/4.851/4.953/0.107 ms