Features

A high-level, non-exhaustive list of features currently available in FoxMQ

• Baseline MQTT version 5 broker

  • Client connections over TCP

  • Transport Layer Security (TLS)

    • TLS version 1.2 and 1.3 supported

    • Automatically generates self-signed certificates

    • Supports pre-signed certificates using ECDSA P-256

    • Supports Server Name Identification

  • QoS 0 (at most once), 1 (at least once), or 2 (exactly once) delivery

    • QoS 1 and 2 message delivery for offline clients

    • Ordered delivery of QoS 1 and 2 messages

  • Wildcard subscriptions (+ and #)

  • Clean and persistent sessions

  • Session expiry

  • Last Wills

  • Topic Aliases

  • Flow control with Receive Maximum

  • Keep Alive

  • Response Topics

  • User properties

  • Password authentication with state-of-the-art cryptography (Argon2)

• Clustering

  • Static membership

    • Nodes identify each other using public-key cryptography (ECSDA P-256)

  • Secure, low-latency cluster communication over UDP using QUIC and TLS 1.3

  • Fault-tolerant when utilizing 4 or more nodes (see Quick Start - Direct for details)

  • Fairly ordered messaging utilizing Tashi Consensus Engine