Cluster External Ports

These ports should be open between nodes and the external network for communication and management of Rancher.

Protocol Port Description
TCP 22 SSH for RKE
TCP 80 Ingress controller - redirect to HTTPS
TCP 443 Ingress controller - HTTPS traffic to Rancher
TCP 6443 HTTPS to kube-api, used by kubectl and helm


Additional Ports Required Between Rancher Cluster Nodes

In addition to the ports listed above these ports must be open between nodes.

Protocol Port Description
TCP 2379-2380 etcd
udp 8472 Overlay networking
TCP 10250 kubelet