PHP Warning: file_get_contents(/kbox/mysql/var/mysql-ca-cert.pem): failed to open stream: Permission denied in /kbox/kboxwww/include/settings_security_ui.inc on line 541
原因
Error will occur if an intermediate certificate is applied when it should not be.
解决办法
Re-apply the certificates leaving out the intermediate certificate and ensuring they are applied correctly.
More information on applying the SSL certificates can be found here.
Information about the SSL certificate file types can be found here.