How to Determine which SSL/TLS Protocols are Enabled in the Apache Configuration

To examine the permitted protocols, refer to the “SSLProtocol” Apache directive, which determines the SSL/TLS protocols used by Apache.

Follow the steps-

1. Access Plesk server through SSH.
2. Execute the following command-
   1. For CentOS/RHEL-based disseminations, use the following-
      # grep SSLProtocol /etc/httpd/conf.d/ssl.conf
      SSLProtocol +TLSv1.2
   2. For Debian/Ubuntu-based disseminations, use the below
      # grep -ir SSLProtocol /etc/apache2/*
      /etc/apache2/mods-available/ssl.conf:SSLProtocol +TLSv1.2 +TLSv1.3

That is all! If you need further assistance, please do not hesitate to get in touch with our support experts.