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2376 Docker API (TLS)

Port 2376 is the TLS-protected Docker API endpoint for remote daemon management.

Security Context

Port 2376 is context-dependent. Its risk depends on the daemon behind it, whether the traffic is encrypted, and how tightly the listener is scoped to trusted networks.

Nmap Check

Use a version probe first so you confirm whether the expected service is really what is listening on this port.

nmap -sV -p 2376 <host>

Firewall Commands

UFW
sudo ufw allow 2376/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2376 -j ACCEPT

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