```
Host 'hk-v4.example.com' resolved to *.*.*.*.
Connecting to *.*.*.*:22...
Could not connect to 'hk-v4.expample.com' (port 22): Connection failed.
Type `help' to learn how to use Xshell prompt.
```
以上内容出现的 IP 与域名均替换真实的(实际 IP 段为`38.55.*.0/24`)，现在 22 端口开始拒绝，流量也没有耗尽。
