# 系统容错

支持MQTT和HTTP协议的传输加密，支持设备认证和设备凭证管理。

提供了通过SSL运行MQTT服务器的功能，支持单向和双向SSL。要启用SSL，需要获取有效或生成自签名SSL证书并将其添加到密钥库。一旦添加，将需要在iot.yml文件中指定密钥库信息。请参阅关于如何生成SSL证书并在下面的平台安装中使用它的说明。如果已经拥有证书，则可以跳过证书生成步骤。


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://doc.yuncitys.com/ping-tai-jie-shao/ruan-jian-gong-neng/xi-tong-rong-cuo.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.