PING www.pkucamp.com (154.89.104.205) 56(84) bytes of data.
64 bytes from 154.89.104.205 (154.89.104.205): icmp_seq=1 ttl=57 time=203 ms
64 bytes from 154.89.104.205 (154.89.104.205): icmp_seq=2 ttl=57 time=203 ms
64 bytes from 154.89.104.205 (154.89.104.205): icmp_seq=3 ttl=57 time=202 ms

--- www.pkucamp.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2006ms
rtt min/avg/max/mdev = 202.970/203.169/203.452/0.559 ms