How to Enable TLS 1.3 in Apache’s Global Configuration
Introduction
TLS 1.3, the latest encryption protocol, significantly enhances web security and performance. It is the successor to TLS 1.2, offering reduced latency and strengthened encryption. While cPanel and WHM support both TLS 1.2 and 1.3, older versions like TLS 1.0 and TLS 1.1 were deprecated in 2020 due to security vulnerabilities. By default, WHM activates TLS 1.2, but enabling TLS 1.3 ensures your server remains secure and up-to-date.
Note: This tutorial is intended for clients who have their own VPS or dedicated server and possess root access to their WHM server.
Step-by-Step Guide to Enable TLS 1.3
Step 1: Access WHM
Begin by logging into your WHM (Web Host Manager) interface as the root user. Once logged in, navigate to the following path:
WHM Home -> Service Configuration -> Apache Configuration -> Global Configuration
This section allows you to manage global settings for your Apache server.
Step 2: Update SSL/TLS Protocols
In the Global Configuration settings, locate the SSL/TLS Protocols field. Modify the field to include the following entry:
All -SSLv2 -SSLv3 -TLSv1 -TLSv1.1 +TLSv1.2 +TLSv1.3
This configuration:
- Disables outdated protocols: SSLv2, SSLv3, TLSv1, and TLSv1.1
- Ensures TLS 1.2 and TLS 1.3 are enabled for modern, secure communications.
Step 3: Save and Apply Changes
Scroll down to the bottom of the page and click Save. After saving, select the Rebuild Configuration and Restart Apache option. This action ensures that your changes are applied by rebuilding Apache’s configuration and restarting the service.
Step 4: Verify TLS 1.3 Activation
To confirm that TLS 1.3 is successfully enabled, use a third-party tool like SSL Labs. These tools provide a detailed analysis of your server’s SSL/TLS configurations and verify the supported protocols.
Benefits of Enabling TLS 1.3
- Enhanced Security: TLS 1.3 eliminates outdated cryptographic algorithms, minimizing vulnerabilities.
- Improved Performance: The handshake process is faster, reducing latency for end users.
- Future-Proofing: Ensures your server adheres to the latest security standards.
By enabling TLS 1.3, your server remains compliant with modern security practices, offering visitors a safer browsing experience.
Common Questions about TLS 1.3
What is TLS 1.3 and why is it important?
TLS 1.3 is the latest version of the Transport Layer Security protocol. It is faster and more secure than its predecessors, addressing known vulnerabilities in older versions.
Can TLS 1.3 work alongside TLS 1.2?
Yes, both protocols can coexist. This setup ensures compatibility with clients that do not yet support TLS 1.3 while still offering enhanced security.
Why are older TLS versions disabled?
TLS 1.0 and 1.1 are deprecated because they have multiple vulnerabilities that can be exploited by attackers. Disabling them ensures a secure communication environment.
Do I need root access to enable TLS 1.3?
Yes, root access to WHM is required to modify the Apache Global Configuration and implement changes.
What happens if I forget to rebuild Apache after making changes?
The changes will not take effect until Apache is rebuilt and restarted.
How often should I review my SSL/TLS settings?
Regularly review your configurations to ensure compliance with the latest security protocols and standards.
Conclusion
By enabling TLS 1.3 in Apache’s Global Configuration, you improve both the security and performance of your server. This proactive measure not only protects sensitive data but also ensures compliance with modern encryption standards. Always confirm your changes using tools like SSL Labs to validate your configuration. For clients with root access to their WHM servers, this guide provides a straightforward path to implementing TLS 1.3 effectively.
