PING khoacoban.ftu.edu.vn (112.78.1.100) 56(84) bytes of data.
64 bytes from 112.78.1.100 (112.78.1.100): icmp_seq=1 ttl=55 time=234 ms
64 bytes from 112.78.1.100 (112.78.1.100): icmp_seq=2 ttl=55 time=233 ms
64 bytes from 112.78.1.100 (112.78.1.100): icmp_seq=3 ttl=55 time=233 ms

--- khoacoban.ftu.edu.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2295ms
rtt min/avg/max/mdev = 233.653/233.825/234.119/0.446 ms