SO you installed your SSL certificate and when testing on https://cryptoreport.geotrust.com/checker/ you have got this image:
Indeed SSLv3 is not secure and you should disable it. How? If you use Nginx simply go to the website block (config file in the
ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
It would look like this (some data was wiped off):
Before you restart the Nginx please do the test:
nginx -t
If everything is fine you would get a message:
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
Now restart the Nginx:
service nginx restart
Run the SSL test again and the problem should be solved. Enjoy
How to disable the SSL v3 Protocol using Nginx
Protect your server from POODLE attack
Nginx SSL