From WHM >> Service Configuration >> Apache Configuration >> Include Editor, and include the following in Pre Main Include
SSLProtocol -All +TLSv1 +TLSv1.1 +TLSv1.2
Press the Update button to rebuild your Apache configuration and click the "restart Apache" button.
Log is as root and issue:
sed -i 's/+SSLv3/-SSLv3/g' /etc/httpd/conf/extra/httpd-ssl.conf followed by service httpd restart
Login as root replace in /etc/nginx/nginx.conf:
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
Add the following to your Apache configuration: SSLProtocol All -SSLv2 -SSLv3
On Debian,Ubuntu and Turnkey systems edit /etc/apache2/mods-available/ssl.conf and restart Apache via service apache2 restart.
On CentOS, Fedora and Scientific Linux edit /etc/httpd/conf.d/ssl.conf and restart Apache via systemctl restart httpd.
Please use the following site to check if your server isn't supporting SSLv3 anymore: