但是www.baidu.com 无法ping通
1. ping -c 3
www.baidu.com
PING
www.a.shifen.com (14.215.177.39) 56(84) bytes of data.
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=1 ttl=47 time=219 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=2 ttl=47 time=187 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=3 ttl=47 time=242 ms
---
www.a.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 3ms
rtt min/avg/max/mdev = 187.433/215.854/241.578/22.186 ms
2. ping -c 3
www.a.shifen.com
PING
www.a.shifen.com (14.215.177.39) 56(84) bytes of data.
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=1 ttl=47 time=298 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=2 ttl=47 time=273 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=3 ttl=47 time=270 ms
---
www.a.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 4ms
rtt min/avg/max/mdev = 270.248/280.474/297.809/12.330 ms
3. 試試
ping -c 3 14.215.177.39