Port 2375 supports Docker Engine API and Docker (UDP reference coverage) across distinct transports. Review each protocol before writing firewall or monitoring policy.
Conventional unencrypted Docker daemon API endpoint.
Legacy or explicitly isolated remote Docker Engine management.
Client to server
Unauthenticated remote daemon access is effectively root access. Do not expose this endpoint; prefer SSH or mutually authenticated TLS.
Docker (UDP reference coverage) is documented as a network service convention for port 2375 over UDP.
Use this reference entry when identifying or validating systems documented to use 2375/UDP.
Varies
Confirm the listening process and current vendor documentation before permitting traffic; a listed convention does not prove the active service or its security posture.