PING www.haowenzhang.net (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.012 ms
64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.018 ms
64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.033 ms

--- www.haowenzhang.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2010ms
rtt min/avg/max/mdev = 0.012/0.021/0.033/0.008 ms