> For the complete documentation index, see [llms.txt](https://doc.engenius.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.engenius.ai/cloud-configuration-guide/topics/authentication-with-microsoft-entra-id-ldap-server/appendix.md).

# Appendix

<details>

<summary>Content</summary>

[01. How to Generate Customized Certificate?](#how-to-generate-customized-certificate)

[02. Supported Operating Systems and Models](#supported-operating-systems-and-models)

[03. Software Architecture](#software-architecture)

</details>

## 01. How to Generate Customized Certificate?

Several tools are available to create self-signed certificates. In this tutorial, we will use **OpenSSL** to create a self-signed certificate for secure LDAP.

### &#x20;**To get started:**

1. **Generate the certificate:**
   * Download FreeRADIUS code from <https://github.com/FreeRADIUS/freeradius-server/tree/master/raddb/certs>.
   * Navigate to the directory: **`cd raddb/cert/`**
   * Adjust the customized information in the .cnf file (e.g., domain name, expiration duration, location, etc.).
   * Run the bootstrap script: **`./bootstrap`**
   * Zip the certificate files: **`zip cert.zip server.pem dh ca.pem`**
2. Click **Import** and **Zip File Upload** to upload **`cert.zip`** to EnGenius Cloud.

<div align="left"><figure><img src="/files/8xfAtgmnOONmhH8gTNo4" alt="" width="375"><figcaption></figcaption></figure></div>

3. Export **`ca.pem`** and install it on the client device if requested.

{% hint style="info" %}

### **Note:**&#x20;

Some browsers might complain about the self-signed certificate and display a "Not Trusted" warning message. If so, the user needs to search for an official Certificate Authority (CA) to apply for a formal CA certificate to avoid the warning message.
{% endhint %}

<div align="left"><figure><img src="/files/SErlWA0e48e01ZgAIq0o" alt="" width="286"><figcaption><p>Example of Configuration for Android</p></figcaption></figure></div>

## 02. Supported Operating Systems and Models

**EAP-TTLS/PAP** and **TLS 1.2+** are essential on client devices. The following operating systems have native support and are verified to work with EnGenius Cloud AP:

* iOS version 13 and higher
* Google Chrome OS
* Android version 6 and higher
* Microsoft Windows 8 and higher
* MacOS 11 and higher

### **Verified Client Device List:**

| Manufacturer | Model                 | Operating System |
| ------------ | --------------------- | ---------------- |
| Apple        | iPhone 7 Plus         | iOS 13.1.3       |
| Apple        | iPhone 11             | IOS 15.4         |
| Apple        | iPhone 12             | iOS 14.1         |
| Apple        | iPhone XS             | IOS 14.6         |
| Apple        | MacBook Air (M1,2020) | MacOS 12.3       |
| Apple        | iPad Air A1474 (2013) | iOS 12.5.5       |
| Lenovo       | IdeaPad Duet CT-X636F | Chrome OS 72     |
| Google       | Pixel 3a              | Android 11       |
| HP           | ProBook 450 G8        | Windows 10       |
| Samsung      | S21                   | Android 11       |
| Samsung      | Note 4                | Android 6.0.1    |

## 03. Software Architecture

### Captive portal with Azure AD Server

<figure><img src="/files/8bfWrCY6II8dYB2cnuMS" alt=""><figcaption></figcaption></figure>

### WPA2/WPA3-Enterprise with Azure AD Server

<figure><img src="/files/2EpPa8aQ7gWT9XkfG5HN" alt=""><figcaption></figcaption></figure>


---

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