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=56 time=242 ms
64 bytes from ns8938.dotvndns.vn (112.213.89.38): icmp_seq=2 ttl=56 time=245 ms
64 bytes from ns8938.dotvndns.vn (112.213.89.38): icmp_seq=3 ttl=56 time=242 ms

--- ric.edu.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 242.020/243.493/245.747/1.667 ms