7946
Docker Swarm
Medium RiskTCP/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.