RobustMQ

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RobustMQ Public MQTT Server ​

This guide introduces how to use the public MQTT server provided by RobustMQ for testing and development.

Server Information ​

Endpoints ​

ProtocolAddressPortDescription
MQTT TCP117.72.92.1171883Standard MQTT connection
MQTT SSL/TLS117.72.92.1171884Encrypted MQTT connection
MQTT WebSocket117.72.92.1171093WebSocket connection
MQTT WebSocket SSL117.72.92.1171094Encrypted WebSocket connection
MQTT QUIC117.72.92.1171083QUIC protocol connection

Authentication ​

  • Username: robustmq
  • Password: robustmq

Management Interface ​

Dashboard

Quick Experience ​

Using MQTTX Command Line Tool ​

1. Send Messages ​

bash
# Send simple message
mqttx pub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/topic" -m "Hello RobustMQ!"

# Send QoS 1 message
mqttx pub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/qos1" -m "QoS 1 message" -q 1

# Send retained message
mqttx pub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/retained" -m "Retained message" -r

# Send JSON format message
mqttx pub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "sensors/temperature" -m '{"value": 25.5, "unit": "celsius"}'

2. Subscribe to Messages ​

bash
# Subscribe to single topic
mqttx sub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/topic"

# Subscribe to wildcard topics
mqttx sub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/+"  # Single-level wildcard
mqttx sub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/#"  # Multi-level wildcard

# Subscribe and display detailed information
mqttx sub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/topic" --verbose

3. Performance Testing ​

bash
# Publish performance test
mqttx bench pub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/bench" -c 10 -C 100

# Subscribe performance test
mqttx bench sub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "test/bench" -c 50

Using MQTTX GUI Client ​

1. Connection Configuration ​

  • Host: 117.72.92.117
  • Port: 1883
  • Username: robustmq
  • Password: robustmq
  • Client ID: Custom

MQTTX Connection Configuration

2. Publish and Subscribe ​

After connecting successfully, you can:

  • Create subscriptions to receive messages
  • Publish messages to specified topics
  • View real-time message flow

MQTTX Publish Subscribe

Complete Example ​

Step 1: Subscribe to Messages ​

bash
# Terminal 1: Subscribe to temperature sensor data
mqttx sub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "sensors/temperature" --verbose

Step 2: Send Messages ​

bash
# Terminal 2: Send temperature data
mqttx pub -h 117.72.92.117 -p 1883 -u robustmq -P robustmq -t "sensors/temperature" -m '{"sensor": "temp-001", "value": 23.5, "unit": "celsius", "timestamp": "2024-01-01T12:00:00Z"}'

Step 3: View Dashboard ​

Visit http://117.72.92.117:3000/ to view real-time connections and message statistics.

Important Notes ​

  1. Public Server Limitations: This is a public server for testing purposes, do not use in production environments
  2. Message Retention: Messages are not permanently retained, please process them promptly
  3. Connection Limits: Please use reasonably to avoid excessive resource consumption
  4. Security Reminder: Do not transmit sensitive information in messages

Supported Protocol Features ​

  • ✅ MQTT 3.1.1
  • ✅ MQTT 5.0
  • ✅ QoS 0, 1, 2
  • ✅ Retained Messages
  • ✅ Will Messages
  • ✅ Topic Wildcards
  • ✅ SSL/TLS Encryption
  • ✅ WebSocket Support
  • ✅ QUIC Protocol Support