1.Authentication on Azure VM:

To effectively use Azure VPN, follow these organized steps, considering security, management, and practical considerations:

• Ensure your organization is authenticated using Azure.
• Create an Azure VM and install Azure CLI.
• Use the Azure CLI to authenticate on the VM, typically using a username, password, and a private network key.

2. Setting Up a VPN Server:

   • Open Azure CLI and create a new Azure VM.
   • Create a VPN server with a default port (e.g., 2521) and a local netmask (e.g., 255.255.255.) on the VM.
   • Configure the port settings and enable the VPN server.

3. Creating a VPN Tunnel:

   • Use Azure CLI or Azure VPN Tunnel Client to create a VPN tunnel.
   • Set up the tunnel with the appropriate source and destination IPs, using the VPN server's IP as the source.
   • Enable the tunnel and configure it to use HTTPS for secure connections.

4. Subscribing to Tunnels:

   • Use Azure CLI to subscribe to all VPN tunnels or select specific tunnels for different network requirements.
   • Ensure each tunnel is properly configured for security and encryption.

5. Accessing the VPN:

   • Log in to the Azure VM with the authentication credentials.
   • Use Azure VPN Tunnel Client or the Azure VPN API to connect to the tunnels and access the network.

6. Security Best Practices:

   • Encrypt public Wi-Fi traffic using HTTPS.
   • Use a strong VPN key to authenticate.
   • Implement a backup plan in case the VPN connection falls down.
   • Ensure all VPN tunnels are configured for unicast traffic to enhance security.

7. Multiple Users Management:

   • Create separate Azure VMs for each user or use a single VM to manage multiple accounts.
   • Use Azure CLI to create multiple accounts or manage existing ones on a single VM.

8. Cost Considerations:

   • Compare costs of Azure VPN with local internet options, especially for short-term use.
   • Consider a VPN for home networks and ensure it is encrypted and secure.

9. Command-Line Tools:

   • Use Azure CLI commands like VPN Tunnel Client or VPN API for connecting and managing VPN tunnels.

10. Reliability and Maintenance:

    • Ensure the VPN connection is reliable by testing and monitoring.
    • Maintain the setup regularly to address any issues and keep the VPN server private.

By following these steps, you can securely and effectively use Azure VPN to access a private network, ensuring a secure and reliable connection.