Disabling SSLv3
Log into the Synology under DSM 5.
Change:
SSLProtocol all -SSLv2
to:
SSLProtocol all -SSLv2 -SSLv3
in:
/etc/httpd/conf/extra/httpd-alt-port-ssl-setting.conf
and
/etc/httpd/conf/extra/httpd-ssl.conf-common
and restart apache:
/usr/syno/etc/rc.d/S97apache-sys.sh restart
/usr/syno/sbin/synoservicecfg --restart httpd-user
Reference source: