Is port 7946 (Docker Swarm) dangerous?

Port 7946 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 7946 be open on my firewall?

Port 7946 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 7946 use?

Port 7946 (Docker Swarm) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:7946 (TCP/UDP)

Docker Swarm

Medium Risk

TCP/UDP — System & Infrastructure

Port Overview

Port Number 7946

Service Name Docker Swarm

Transport Protocol TCP/UDP

Category System & Infrastructure

Security Risk Medium

Port Range Registered (1024-49151)

What is Port 7946?

Port 7946 is used by Docker Swarm for control plane communication between swarm nodes, including cluster management and gossip protocol messages. Docker Swarm uses both TCP and UDP on this port for different aspects of container orchestration coordination. This port must be accessible between all nodes in a Docker Swarm cluster.

TCP/UDP System & Infrastructure Commonly Used

Security Considerations

Port 7946 (Docker Swarm) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.

Recommendation: Keep the service updated. Monitor logs for unusual activity.

Related Ports — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Related Terms

Bandwidth Latency Packet Loss Ping Throughput ASN