使用大学网络时，我们的大学网站无法打开，但是，该网站在任何外部网络上都可以完美运行。该网站由提供商托管，而不是大学。我尝试重新启动主路由器，ping 并使用 WinMTR 检查与网站的连接。浏览器出现“响应时间过长”错误。没有更改任何设置，这可能是什么问题？
这些是 WinMTR 读数：
| WinMTR statistics |
| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
| 192.168.243.254 - 0 | 14 | 14 | 0 | 0 | 0 | 0 |
| 193.219.187.145 - 0 | 14 | 14 | 0 | 1 | 18 | 0 |
| 193.219.153.5 - 0 | 14 | 14 | 3 | 4 | 20 | 3 |
| 193.219.153.26 - 0 | 14 | 14 | 4 | 4 | 5 | 5 |
| RACKRAY.balt-ix.net - 0 | 14 | 14 | 4 | 7 | 25 | 5 |
| n11-b16-lt1.node.serveriai.lt - 0 | 14 | 14 | 5 | 6 | 21 | 5 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
| No response from host - 100 | 2 | 0 | 0 | 0 | 0 | 0 |
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答案1
找到答案了。
这些 IP 之所以被阻止，是因为服务器端的防火墙记录了服务器电子邮件系统 282 次登录失败。