VPN服务器是构建VPN网络的重要基础，选择合适的服务器可以为您的VPN环境提供安全和效率，以下是一些 commonly recommended VPN server configurations and tips for setting up a VPN server:

• Recommendation: Use OpenVPN as the default VPN server. It is highly recommended for its simplicity and security.
• Configuration:
  1. IP Address: Choose a public IP address for your OpenVPN server.
  2. Port: Use a secure port (e.g., 443 for HTTPS).
  3. Server Name: Give your server a meaningful name (e.g., "MyVPN" or "OpenVPN Server").
• Security: Use a strong password and keep your IP address private.
• Features: OpenVPN supports a wide range of protocols and is highly secure.

VPN Server with NAT (Network Address Translation)

• Recommendation: Use a VPN server that supports NAT to avoid issues with local network access.
• Configuration:
  1. Server Name: Use a domain name (e.g., "OpenVPN" or "MyVPN").
  2. Port: Use a high-speed port (e.g., 88).
  3. NAT Header: Include a NAT header in your server configuration for better security.
  4. IP Address: Use a public IP address to ensure the server is accessible from the internet.
• Features: NAT helps protect your server from local network attacks and ensures secure communication.

VPN专用服务器 (Private Server)

• Recommendation: Use a VPN server designed specifically for your needs, such as a dedicated VPN server or a VPN server with specific security features.
• Configuration:
  1. IP Address: Use a public IP address.
  2. Port: Use a secure port.
  3. Server Name: Give it a unique name (e.g., "YourVPN Server").
• Features: These servers are often designed with strong passwords, secure protocols, and may include additional security features like CAPTCHA.

NAT Server

• Recommendation: Use a server that supports NAT to ensure your server is accessible from the internet and to protect against local network attacks.
• Configuration:
  1. Server Name: Use a domain name (e.g., "OpenVPN" or "MyVPN").
  2. Port: Use a high-speed port (e.g., 88).
  3. NAT Header: Include a NAT header in your server configuration.
  4. IP Address: Use a public IP address.
• Features: NAT helps protect your server from local attacks and ensures secure communication.

OpenVPN Server with NAT

• Recommendation: Use OpenVPN as the main VPN server with NAT support.
• Configuration:
  1. IP Address: Use a public IP address.
  2. Port: Use a secure port (e.g., 443 for HTTPS).
  3. Server Name: Use a domain name (e.g., "OpenVPN Server").
  4. NAT Header: Include a NAT header in your server configuration.
• Features: This combination ensures your server is accessible from the internet and secure against local attacks.

NAT Server with OpenVPN

• Recommendation: Use a NAT server paired with OpenVPN for a secure and private network.
• Configuration:
  1. Server Name: Use a domain name (e.g., "OpenVPN Server").
  2. IP Address: Use a public IP address.
  3. Port: Use a high-speed port (e.g., 88).
  4. NAT Header: Include a NAT header in your server configuration.
• Features: This setup creates a private network with OpenVPN providing secure communication.

OpenVPN Server with IPsec (IPsec)

• Recommendation: Use OpenVPN with IPsec for secure communication and authentication.
• Configuration:
  1. IP Address: Use a public IP address.
  2. Port: Use a secure port (e.g., 443 for HTTPS).
  3. Server Name: Use a domain name (e.g., "OpenVPN Server").
  4. IPsec Header: Include an IPsec header in your server configuration.
• Features: IPsec provides authentication and encryption for secure communication.

OpenVPN Server with Virtual Private Server (VPS)

• Recommendation: Use OpenVPN as your main VPN server and integrate it with a VPS for security and performance.
• Configuration:
  1. IP Address: Use a public IP address.
  2. Port: Use a secure port (e.g., 443 for HTTPS).
  3. Server Name: Use a domain name (e.g., "OpenVPN Server").
  4. VPS Header: Include a VPS header in your OpenVPN configuration.
• Features: This setup integrates OpenVPN with a VPS for enhanced security and performance.

OpenVPN Server with CAPTCHA

• Recommendation: Use OpenVPN with CAPTCHA (Completely At Risk) to help bypass CAPTCHA.
• Configuration:
  1. Server Name: Use a domain name (e.g., "OpenVPN Server").
  2. IP Address: Use a public IP address.
  3. Port: Use a secure port (e.g., 443 for HTTPS).
  4. CAPTCHA Header: Include a CAPTCHA header in your OpenVPN configuration.
• Features: CAPTCHA helps protect against CAPTCHAs by ensuring your site is CAPTCH-valid.

OpenVPN Server with CAPTCHA and NAT

• Recommendation: Use OpenVPN with both CAPTCHA and NAT to provide secure and private communication.
• Configuration:
  1. Server Name: Use a domain name (e.g., "OpenVPN Server").
  2. IP Address: Use a public IP address.
  3. Port: Use a secure port (e.g., 443 for HTTPS).
  4. NAT Header: Include a NAT header in your server configuration.
  5. CAPTCHA Header: Include a CAPTCHA header in your OpenVPN configuration.
• Features: This setup provides secure communication with CAPTCHA protection and ensures your server is accessible via NAT.

General Tips for VPN Server Setup:

1. Use a Strong Password: Ensure your server password is strong (at least 12 characters, not easily guessable).
2. Select a Domain Name: Use a domain name (e.g., "OpenVPN" or "MyVPN") for your server.
3. Minimize Local Network Access: Use NAT if necessary and ensure your server is accessible from the internet.
4. Use a High-Speed Port: For example, port 88 or 443 (HTTPS).
5. Check for CAPTCHA: If using CAPTCHA, ensure your site is CAPTCH-valid.
6. Test Your Server: Before connecting to your server, test your firewall or dial-up connection to ensure it can access your server.
7. Use Firewall or DNS: Ensure your server is accessible via your firewall or DNS settings.

Example Server Configurations:

• OpenVPN Server:

  • IP: 192.168.1.1
  • Port: 443
  • Server Name: OpenVPN
  • Configuration: OpenVPN 443:8 <IP address> <Server Name> <Port>

• NAT Server:

  • IP: 192.168.1.1
  • Port: 88
  • Server Name: NAT Server
  • Configuration: OpenVPN 88:8 <IP address> <Server Name> <Port>

• OpenVPN Server with NAT:

  • IP: 192.168.1.1
  • Port: 443
  • Server Name: OpenVPN
  • NAT Header: NAT:81;Port:443;Protocol:432;Type:1

• OpenVPN Server with IPsec:

  • IP: 192.168.1.1
  • Port: 443
  • Server Name: OpenVPN
  • IPsec Header: IPsec:8;Protocol:IPSec;Type:1

Final Thoughts:

When setting up a VPN server, prioritize security by using a reputable VPN service provider, ensuring your server is secure, and setting up the correct configuration. Always test your server connection and use CAPTCHA if necessary. Remember, VPN servers can be a powerful tool for your network, so make sure you're using them securely.