> ## Documentation Index
> Fetch the complete documentation index at: https://docs.odigos.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Prerequisites

> Requirements for installing Odigos Central, including Kubernetes version, license token, and network connectivity.

Before installing Odigos Central, ensure you have:

* **Kubernetes** version 1.19.0 or higher
* **Odigos Enterprise license token** (contact Odigos team to obtain)
* **Helm** 3.x (if using Helm installation method)
* **Network connectivity** from remote clusters to the Central Backend endpoint

## Network Requirements

Ensure the following network connectivity:

| Source                 | Destination     | Port | Protocol        |
| ---------------------- | --------------- | ---- | --------------- |
| Users                  | Central UI      | 3000 | HTTPS           |
| Central UI             | Central Backend | 8081 | HTTP/HTTPS      |
| Central Backend        | Redis           | 6379 | TCP             |
| Central Backend        | Keycloak        | 8080 | HTTP            |
| Remote Cluster Proxies | Central Backend | 8081 | WebSocket (WSS) |

<Warning>
  Odigos Central is an Enterprise feature and requires a valid license token.
  Make sure your `--onprem-token` is valid and has the necessary permissions.
</Warning>