PING cuongnguyen.net (104.21.34.45) 56(84) bytes of data.
64 bytes from 104.21.34.45 (104.21.34.45): icmp_seq=1 ttl=60 time=6.63 ms
64 bytes from 104.21.34.45 (104.21.34.45): icmp_seq=2 ttl=60 time=3.88 ms
64 bytes from 104.21.34.45 (104.21.34.45): icmp_seq=3 ttl=60 time=3.83 ms

--- cuongnguyen.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 3.830/4.784/6.638/1.311 ms