Port 2376 — Docker (TLS)
Quick reference for TCP/UDP port 2376, used by Docker (TLS). Includes what the service does, security guidance and related ports.
What is port 2376?
Docker daemon API with TLS.
What port does Docker (TLS) use?
Docker (TLS) listens on port 2376 by default.
Is port 2376 open? How to check
Run one of these from your computer, replacing HOST with the IP address or domain you want to test.
nc -zv HOST 2376
Test-NetConnection HOST -Port 2376
nmap -p 2376 HOST
A refused or timed-out connection means the port is closed or filtered by a firewall.
Security guidance
Medium risk — open with care
Port 2376 (Docker (TLS)) can safely face the internet if you keep the software up to date, restrict admin endpoints, and use TLS where possible. Audit who can reach it and watch your logs.
Related ports
Frequently asked
What is port 2376 used for?+
Port 2376 is the standard TCP/UDP port for Docker (TLS). Docker daemon API with TLS.
What port does Docker (TLS) use?+
Docker (TLS) listens on port 2376 by default.
Your IP Address Is Exposed Right Now
Every website you visit can see your real IP address and location. NordVPN encrypts your traffic and hides your identity with military-grade encryption. Stay anonymous online.