Protocol | Port | Source | Destination | Description
--- | --- | --- | --- | ---
TCP | 80 | Load Balancer / Reverse Proxy |  | HTTP traffic to Rancher UI / API.
TCP | 443 | Load Balancer / Reverse Proxy Otherwise IPs of all cluster nodes and other Rancher API / UI clients. |  | HTTPS traffic to Rancher UI / API.
TCP | 443 |  | 35.160.43.145 35.167.242.46 52.33.59.17 | Rancher catalog (git.rancher.io).
TCP | 22 |  | Any node created using node driver. | SSH provisioning of node by node driver.
TCP | 2376 |  | Any node created using node driver. | Docker daemon TLS port used by node driver.
TCP | Provider Dependent |  | Port of the Kubernetes API endpoint in hosted clusters. | Kubernetes API.