TCP 16379
Synopsis
- TCP port 16379 is used by Redis Cluster for its cluster bus (node-to-node gossip and cluster coordination), which defaults to main_port + 10000 (so a Redis node on 6379 uses 16379 for the bus).
- Real-world examples include self-hosted Redis Cluster nodes on Linux, Docker/Kubernetes deployments such as the Bitnami/Redis Helm chart and the official Redis Cluster examples, where Services/containers expose 6379 and 16379.
- KeyDB (a Redis-compatible clustered database) follows the same convention, using 16379 for the cluster bus when the primary port is 6379.
- Security note: exposed Redis cluster ports, including 16379, are routinely probed and abused alongside 6379 for unauthorized access or cluster manipulation, so they should not be internet-accessible.
Observed activity
Last 30 days
Detailed chart