How to Enable TLS 1.3 on Windows, Limux, Mac, Apache & NGINX

BlueLeaf

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Enabling TLS 1.3 on various platforms and web servers requires different steps. Below is a step-by-step guide to enabling TLS 1.3 on Windows, Linux, Mac, Apache, and Nginx:

Windows

Please note that Windows already has TLS 1.3 support starting from Windows 10 version 20170, and Windows Server version 20170. All you have to do is ensure that your system is up-to-date.

Linux

To enable TLS 1.3 on Linux, you need to update OpenSSL to a version that supports TLS 1.3.
  • Check if your current OpenSSL version supports TLS 1.3:
    openssl version
  • If your OpenSSL version is 1.1.1 or higher, it likely already supports TLS 1.3. If not, update OpenSSL to the latest version.
Mac

Similar to Linux, macOS starting from macOS 10.14 supports TLS 1.3 through the updated version of OpenSSL. If your macOS version is 10.14 or newer, you should have TLS 1.3 support enabled by default.

Apache

To enable TLS 1.3 on the Apache web server, follow these steps:
  • Ensure you have a version of Apache that supports TLS 1.3. Apache 2.4.36 and later versions include support for TLS 1.3.
  • Open your Apache configuration file (httpd.conf or apache2.conf), usually located in /etc/apache2/ or /etc/httpd/.
  • Add the following line to enable TLS 1.3 support:
    SSLProtocol -all +TLSv1.3
  • Save the changes and restart the Apache server to apply the configuration:
    apachectl restart
Nginx

To enable TLS 1.3 on Nginx, you need to use a version of Nginx that supports TLS 1.3 (Nginx 1.13.0 and later).
  • Open your Nginx configuration file (nginx.conf), often found in /etc/nginx/.
  • Locate the ssl_protocols directive within the http block and make sure it includes TLS 1.3:
    Code:
    http {
    ...
    ssl_protocols TLSv1.2 TLSv1.3;
    ...
    }
  • Save the changes and check the Nginx configuration for syntax errors:
    nginx -t
  • If the configuration test passes, reload Nginx to apply the changes:
    nginx -s reload
After following the steps for your respective platform and web server, TLS 1.3 should now be enabled and active. Remember to test your server's SSL/TLS configuration using online tools or OpenSSL utilities to ensure TLS 1.3 is properly configured and working.
 

Kaz Wolfe

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Why needs to enable TLS 1.3? What benefits and what is the default TLS on our hosting?
 

BlueLeaf

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Enabling TLS 1.3 is beneficial for several reasons:
  1. Enhanced security: TLS 1.3 provides stronger encryption algorithms, reducing the risk of data interception and unauthorized access.
  2. Faster connection establishment: TLS 1.3 reduces the latency during the initial handshake, leading to quicker website loading times.
  3. Forward secrecy: TLS 1.3 ensures that even if private keys are compromised in the future, past communications remain secure.
  4. Improved privacy: It offers increased protection against passive eavesdropping and man-in-the-middle attacks.
  5. Better performance: TLS 1.3 reduces the number of round trips required for the handshake, leading to improved overall performance.
  6. Stronger authentication: It supports more robust certificate authentication methods, reducing the risk of impersonation.
Your hosting provider should support TLS 1.2 and TLS 1.3 versions. Previous releases are obsolete and pose significant security risks. TLS 1.0 may be enabled on some legacy servers, but you won't encounter it on modern hosting setups.
 

Harry P

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Harry P
  1. Better performance: TLS 1.3 reduces the number of round trips required for the handshake, leading to improved overall performance.
Is it real? can you explain more?
my site is using cloudflare, i can change this from cloudflare?
I ask this because I see this option in cloudflare.
 

Protectorat

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I've been tinkering with TLS 1.3 recently, and your guide is quite helpful, especially for folks navigating different platforms. For Windows users, it's pretty straightforward since recent versions already have TLS 1.3 baked in.
 

sarahalexa010

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I've been tinkering with TLS 1.3 recently, and your guide is quite helpful, especially for folks navigating different platforms. For Windows users, it's pretty straightforward since recent versions already have TLS 1.3 baked in.
 
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