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[帮助文档] 设备如何使用MQTT云网关与物联网平台连接并进行通信

MQTT协议云网关采用标准的MQTT协议，支持使用自定义证书、服务端单向认证、设备端OCSP、设备和服务端双向安全接入和证书管理等能力。本文介绍物联网平台具体的MQTT协议云网关能力，及设备如何使用MQTT云网关与物联网平台连接并进行通信。

[帮助文档] 如何使用rocketmq-client-cpp部署和连接RocketMQ

本文主要介绍如何使用RocketMQ 4.x/3.x系列的rocketmq-client-cpp二进制包进行部署和连接阿里云云消息队列 RocketMQ 版的过程。如需源码编译，请您自行前往开源社区下载。

MQTT中用websocket协议怎么连接？既然是ws，为啥不能同时在线

[帮助文档] 开源MQTT客户端首次连接配置

本文以Java SDK为例介绍开源MQTT客户端首次连接服务端时如何初始化客户端和配置自动重连功能。

我的mqtt协议和emqttd开源项目个人理解（23） - websocket客户端连接过程分析（Wireshark抓包+源码分析）

我们可以使用emq自带的Dashboard插件，进行websocket调试，打开谷歌浏览器输入网址，其中192.168.83.128是emq所在的IP地址：http://192.168.83.128:18083/#/websocket用户名：admin，密码：publicWebSocket URI&...

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