Qualsys run an SSL / TLF Checker to enable you to audit your web server (Apache in this case) to check the SSL certificates and security are up to date and secure. Getting a perfect A or A plus is both difficult and easy. Here is how we did it.
1. Audit your web server using the tool here: https://www.ssllabs.com/ssltest/index.html
2. Create an SSL Configuration here: https://mozilla.github.io/server-side-tls/ssl-config-generator
3. Open a command line and edit /etc/apache2/mods-available/ssl.conf to have its line match the generated configuration
4. Restart apache (/etc/init.d/apache2 restart)
That should do it.