How to check what SSL/TLS protocols are enabled in Apache configuration

[mahesh]

Question
How to check what SSL/TLS protocols are enabled in Apache configuration?

Answer
SSL/TLS protocols used by Apache are defined by the "SSLProtocol" Apache directive. To check which protocols are allowed:

1.Connect to a Plesk server via SSH.

2.Run the command:

• on CentOS/RHEL-based distributions

Code Select Expand

#grep SSLProtocol /etc/httpd/conf.d/ssl.conf

SSLProtocol +TLSv1.2


• on Debian/Ubuntu-based distributions

Code Select Expand

#grep -ir SSLProtocol /etc/apache2/*

/etc/apache2/mods-available/ssl.conf:SSLProtocol +TLSv1.2 +TLSv1.3