四秒延迟,一半丢包,还是阿里云的 IP
```
PING
chat.jinzhe.net (115.29.43.145): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
64 bytes from 115.29.43.145: icmp_seq=0 ttl=54 time=3313.635 ms
Request timeout for icmp_seq 4
64 bytes from 115.29.43.145: icmp_seq=1 ttl=54 time=4630.567 ms
64 bytes from 115.29.43.145: icmp_seq=2 ttl=54 time=4584.433 ms
64 bytes from 115.29.43.145: icmp_seq=3 ttl=54 time=4614.503 ms
64 bytes from 115.29.43.145: icmp_seq=4 ttl=54 time=4833.823 ms
^C
---
chat.jinzhe.net ping statistics ---
10 packets transmitted, 5 packets received, 50.0% packet loss
```