I’ve been having trouble opening WebEx because of a Java error message. The “security settings have blocked the application”. Here’s what I did to fix it…
Error message:
Your security settings have blocked an application signed with an expired or not-yet-valid certificate from running.
So, when I start the meeting, this is what it looks like:
The page then shows an error box. If you click on the error, you get this message:
Next, I needed to know which version of Java we are dealing with here. I have multiple installed, and I forget which is connected to the browser. Going to the Java Test Page tells me that I have Java 8 Update 31 installed.
I need to add a site exception, which means that I need to figure out how to get to the control panel. According to Ask Ubuntu, it is located at $JAVA_HOME/bin/ControlPanel, which for me is: /usr/lib/jvm/java-8-oracle/bin/ControlPanel. It is also on the path for me at /usr/bin/ControlPanel
I also found that if I search “Control Panel” in the Unity menu, that it shows up.
Once in the control panel, I had to go to the Security tab, and add an exception. I tried the site for my company first:
That didn’t work. I had to add the generic URL: https://akamaicdn.webex.com
Then, it worked fine and opened the Meeting Center with no problem. I did have to agree to a warning first:
