Port 2380: etcd peer
Port 2380 is used for peer-to-peer traffic between etcd nodes in a cluster, keeping their replicated data in sync via the Raft consensus protocol. It is separate from the client-facing port 2379.
TCPInfrastructure & orchestrationUnencrypted by default
| Port number | 2380 |
|---|---|
| Service | etcd peer communication |
| Protocol | TCP |
| Category | Infrastructure & orchestration |
| Default encryption | No |
Security note. Port 2380 is not encrypted by default. Restrict it to trusted networks, or use an encrypted alternative where one exists, to avoid exposing credentials and data in transit.
Frequently asked questions
What is port 2380 used for?
Port 2380 is used for peer-to-peer traffic between etcd nodes in a cluster, keeping their replicated data in sync via the Raft consensus protocol. It is separate from the client-facing port 2379.
Is port 2380 TCP or UDP?
Port 2380 (etcd peer) uses TCP.
Is port 2380 secure?
Port 2380 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 2380 on my firewall?
Only if you specifically need etcd peer. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.