Within WHM, you can customize the SSL/TLS settings to secure connection to the cPanel, WHM, and Webmail services. To continue with this guide and follow along, you can access the cPanel Web Services Configuration from the Service Configuration category of WHM on your Cloud VPS or Dedicated Server if you have purchased an additional cPanel license.
This page gives you two available options to modify:
TLS/SSL Cipher List: Specifies the TLS/SSL ciphers available for any cPanel Web services to use.
TLS/SSL Protocols: Specifies the TLS/SSL protocols available for any cPanel Web services to use.
Both of these options are lists where you can specify multiple entries, separated by colons (":").