rumqttd, a fast MQTT broker written in Rust, ready to accept authenticated device connections the moment it boots.
rumqttd is an open source MQTT broker from the rumqtt project, written in Rust for high throughput and a small memory footprint. It implements the MQTT publish and subscribe protocol used to move telemetry and command messages between devices and back end services, which makes it well suited to Internet of Things and event driven systems.
cloudimg delivers rumqttd preconfigured to require per connection authentication, with a unique broker credential generated on first boot rather than baked into the image. It ships on a hardened, fully patched Ubuntu 24.04 base with a paired deployment guide and 24/7 support.