# CybusMQ CybusMQ is a robust MQTT broker tailored for industrial applications, offering support for both MQTT 5 and MQTT 3.1.1 protocols. It serves as the central message broker within the Connectware ecosystem, facilitating efficient data exchange and inter-service communication. ## Key Features * **Industrial-grade stability and scalability**: Engineered to withstand the demands of industrial environments, ensuring reliable performance under high-load conditions. * **Protocol support**: Offers services for MQTT, secure MQTT over TLS (MQTTS), and MQTT over WebSockets, providing flexibility in communication methods. * **Usage metrics collection**: Gathers usage metrics for reporting to the Portal in online installations, aiding in monitoring and analysis. * **Authentication delegation**: Employs web hooks to delegate authentication processes to the Auth Server, ensuring secure access control. ## Technical Specifications * **Foundation**: CybusMQ is built on VerneMQ, a high-performance distributed MQTT message broker. This foundation provides robust messaging capabilities across distributed systems. * **Technology stack**: CybusMQ is written in Erlang, a language optimized for concurrent operations and fault tolerance. The Erlang/OTP virtual machine uses preemptive scheduling, delivering consistent low latency for real-time applications at scale. --- # 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://docs.cybus.io/2-0-0/documentation/cybusmq.md?ask= ``` 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.