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I'm trying to use Integrated Lights-Out 2 (aka iLO)'s Virtual Media (which is Java based applet) and I'm getting following error(s):

  • Application Blocked by Security Settings
  • Your security settings have blocked a self-signed application from running


$ rpm -q jdk
$ cat /etc/redhat-release 
Scientific Linux release 6.5 (Carbon)
$ uname -a
Linux 2.6.32-431.5.1.el6.x86_64 #1 SMP Tue Feb 11 13:30:01 CST 2014 x86_64 x86_64 x86_64 GNU/Linux

So, I went to Why are Java applications blocked by your security settings? and added URL to the Exception Site list - still no luck(

How do I pass that self-signed application block?

share|improve this question
Terrible, right? – ewwhite Feb 20 '14 at 23:26
I'm pulling my hair! – alexus Feb 20 '14 at 23:26
I'd recommend running the firmware update from the OS and trying again. – ewwhite Feb 21 '14 at 17:02
Try Java 6 instead. We've found a similar situation and workaround recently – Tom O'Connor Feb 23 '14 at 11:49

I've been having this problem a lot with Java update 51. Others have, too.

You've tried adding the URL to your exceptions list. Have you tried a different browser?

For an ILO-specific solution, if you just need access to an ISO image, you can mount it via a URL through the ILO SSH interface. It also makes sense to update the firmware of your ILO. You can do this from the operating system if the web interface is not working for you.

</>hpiLO-> vm cdrom insert
</>hpiLO-> vm cdrom set boot_once
share|improve this answer
While this solution may work for some, unfortunately it won't work for me as I do not have public http server, my ISO file is stored locally on my computer. – alexus Feb 21 '14 at 0:18
Oh, can you update your ILO firmware as well? That may help. – ewwhite Feb 21 '14 at 0:41
that's exactly what I'm trying to do) – alexus Feb 21 '14 at 0:46

I hate suggesting this because I'm generally on board with Default Deny policies but I eventually gave up trying to make the Exception List work for all of different web applications and browser combinations and just set Java's Security Level to Medium.

From the documentation:


This is the minimum recommended (and default) security level setting. Applications that are signed with a valid or expired certificate and include the Permissions attribute in the manifest for the main JAR file are allowed to run with security prompts. Applications are also allowed to run with security prompts when the revocation status of the certificate cannot be checked. All other applications are blocked.


Only unsigned applications that request all permissions are blocked. All other applications are allowed to run with security prompts. Selecting the Medium security level is not recommended and will make your computer more vulnerable should you run a malicious application.

share|improve this answer
I put mine on Medium yet that didn't resolved my issue. – alexus Feb 21 '14 at 0:17
@alexus - Dang! We're not using iLO here but this did work for other apps. Sorry. – kce Feb 21 '14 at 0:23
it works for other apps for me as well, just not for iLO( – alexus Feb 21 '14 at 0:30
The medium setting works for dell idracs. Dunno why iLO would be any different. – Grant Feb 21 '14 at 3:28

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