Disable SSLv2
If you’re running a site with SSL you really need to turn SSLv2 off. The file you’ll want to edit is /etc/httpd/conf.d/ssl.conf - it might be in a different location, but, shouldn’t be hard to find. The two lines you want to make sure you have are:
SSLProtocol -ALL +SSLv3 +TLSv1
SSLCipherSuite ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM
You can also test this once you’ve made the changes:
openssl s_client –ssl2 –connect virtualhost:443
openssl s_client –ssl3 –connect virtualhost:443