This article shows how to add a site exception to Java so that you can connect to the Java-based KVM console used by Supermicro IPMI and Dell DRAC systems.
Java complains about the security of the consoles because they use an unverified, self-signed SSL certificate to encrypt communication between the console window and the BMC.
To add an exception manually, follow these steps
- Click on the Start button and search for Configure Java.

- Click the Security tab and click Edit Site List

Now that you are in the correct location follow the below steps.
- Click Add and type HTTP followed by the IP or hostname you are connecting to. Do the same for HTTPS

- Click Ok, then Ok again to close Java
Now instead of being denied access to the Java console, you should receive a Warning.
Just accept the warning to bypass it and it'll connect.