PING ric.edu.vn (112.213.89.38) 56(84) bytes of data.
64 bytes from ns8938.dotvndns.vn (112.213.89.38): icmp_seq=1 ttl=51 time=267 ms
64 bytes from ns8938.dotvndns.vn (112.213.89.38): icmp_seq=2 ttl=51 time=266 ms
64 bytes from ns8938.dotvndns.vn (112.213.89.38): icmp_seq=3 ttl=51 time=267 ms

--- ric.edu.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 266.610/266.994/267.300/0.287 ms