Port 2375 — Docker (insecure)
Quick reference for TCP/UDP port 2375, used by Docker (insecure). Includes what the service does, security guidance and related ports.
What is port 2375?
Docker daemon API without TLS. Never expose to the internet.
What port does Docker (insecure) use?
Docker (insecure) listens on port 2375 by default.
Security guidance
High risk — do not expose to the internet
Port 2375 (Docker (insecure)) is high-risk because the service it carries is a frequent target for credential attacks, brute force or unpatched-vulnerability scanning. Keep it bound to localhost or your VPN, never forward it directly on a router, and require strong authentication.
Related ports
Frequently asked
What is port 2375 used for?+
Port 2375 is the standard TCP/UDP port for Docker (insecure). Docker daemon API without TLS. Never expose to the internet.
What port does Docker (insecure) use?+
Docker (insecure) listens on port 2375 by default.
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