- Require authentication and TLS on brokers and coordination services.
- Restrict clients by network and per-topic or per-queue permissions.
- Remove default accounts.
Messaging & queues ports
Message brokers and coordination services (AMQP, Kafka, ZooKeeper). 19 ports, most common first.
Securing messaging & queues services
Other port categories
Web /tools/ports/category/web Remote access /tools/ports/category/remote-access File transfer & sharing /tools/ports/category/file-transfer Email /tools/ports/category/email Databases & caches /tools/ports/category/databases Directory & authentication /tools/ports/category/directory-auth Network services /tools/ports/category/network-services VPN, tunnels & proxies /tools/ports/category/vpn-tunnels Voice & chat /tools/ports/category/voice-chat Media & streaming /tools/ports/category/media IoT & industrial (ICS) /tools/ports/category/iot-ics DevOps, cloud & containers /tools/ports/category/devops Monitoring & logging /tools/ports/category/monitoring Gaming /tools/ports/category/gaming Other services /tools/ports/category/other