Is port 2376 (Docker (TLS)) dangerous?

Port 2376 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 2376 be open on my firewall?

Port 2376 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 2376 use?

Port 2376 (Docker (TLS)) uses the TCP transport protocol and falls under the System & Infrastructure category.

:2376 (TCP)

Docker (TLS)

Medium Risk

TCP — System & Infrastructure

Port Overview

Port Number 2376

Service Name Docker (TLS)

Transport Protocol TCP

Category System & Infrastructure

Security Risk Medium

Port Range Registered (1024-49151)

What is Port 2376?

Port 2376 is Docker's TLS-encrypted remote API port, providing secure remote management of Docker daemons. Docker Swarm and remote management tools use this port with mutual TLS authentication to securely control Docker hosts. Administrators should always use port 2376 instead of the unencrypted port 2375 for remote Docker access.

TCP System & Infrastructure Commonly Used

Security Considerations

Port 2376 (Docker (TLS)) 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