PING ebooktoan.com (77.247.179.91) 56(84) bytes of data.
64 bytes from 77.247.179.91 (77.247.179.91): icmp_seq=1 ttl=61 time=7.01 ms
64 bytes from 77.247.179.91 (77.247.179.91): icmp_seq=2 ttl=61 time=4.45 ms
64 bytes from 77.247.179.91 (77.247.179.91): icmp_seq=3 ttl=61 time=4.47 ms

--- ebooktoan.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.451/5.312/7.010/1.200 ms