import { Callout } from "zudoku/ui/Callout";

# Requirements

To use the **365 business Proxy Client**, communication with various **365 business API services** is required.  
To ensure proper functionality, it may be necessary to configure appropriate **firewall settings**.

## Required Resources

The following **DNS names**, **ports**, and **protocols** are used for communication:

<div className="endpoint-table-wrap">
  <table className="endpoint-table">
    <thead>
      <tr>
        <th>DNS Name</th>
        <th>Port</th>
        <th>Protocol</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><code className="url-nowrap">proxyapplication.365businessapi.com</code></td>
        <td>443</td>
        <td>HTTPS</td>
        <td>API endpoint for functionality and license validation.</td>
      </tr>
      <tr>
        <td><code className="url-nowrap">softwaremaintenance.blob.core.windows.net</code></td>
        <td>443</td>
        <td>HTTPS</td>
        <td>API endpoint for plugin download.</td>
      </tr>
      <tr>
        <td><code className="url-nowrap">license.365businessapi.com</code></td>
        <td>443</td>
        <td>HTTPS</td>
        <td>API endpoint for license verification and management.</td>
      </tr>
      <tr>
        <td><code className="url-nowrap">status.365businessdev.com</code></td>
        <td>443</td>
        <td>HTTPS</td>
        <td>Endpoint used for health checks.</td>
      </tr>
    </tbody>
  </table>
</div>

<Callout type="info" title="Info">
    Please ensure that outbound HTTPS connections to the endpoints listed above are allowed by your infrastructure.
</Callout>