Monthly Archives: September 2015

Java applet problems

If you are on a webpage that is running a Java applet and the thing isn’t running [or just won’t work right!], these instructions from http://www.math.ucsd.edu/~crypto/fixjava.html may help.


 

How to Fix Java Applet Security Errors

Security Errors When Loading Java Applets

Did you get errors like the following when you tried to run a Java applet in the web browser?

Your Java version is out-of-date.
Application Blocked
Application Blocked by Security Settings
Your security settings have blocked an application from running with an out-of-date or expired version of Java.
Your security settings have blocked an untrusted application from running.

For security reasons, recent versions of Java may block unsigned Java applets from automatically running by default.

Solution #1

If you are allowed to install/upgrade software on your computer, please install the latest Java upgrade first, relaunch the web browser, and try again.

Solution #2

If you are unable to install/upgrade to the latest Java version, and you trust the unsigned Java applet to be safe, you can workaround this problem by adding an “exception site” or temporarily lowering the security level of the currently installed Java:

For Microsoft Windows:
  1. Click on the Windows “Start” menu in the lower-left corner of the screen –>
    “Control Panel” –>
    “Programs” –>
    “Java”.
  2. In the “Java Control Panel” window that appears –>
    Click the “Security” tab.
  3. If there is a “Exception Site List” section in this window, click on the “Edit Site List…” button –>
    Click the “Add” button –>
    Type in the web server location for the Java applet like “http://www.math.ucsd.edu/” –>
    Click the “OK” button –>
    Click the “OK” button.
  4. If there is no “Exception Site List” section in this window –>
    Slide the “Security Level” indicator from “High” down to “Medium” –>
    Click the “Apply” button –>
    Click the “OK” button.
  5. Close ALL of the open windows. You must completely QUIT the web browser or this workaround will fail.
  6. Re-launch the web browser.
  7. Go to the Java applet.
  8. When the “Security Warning” window asking “Do you want to run this application?” appears, if there is a “I accept the risk and want to run this app.” option, checkmark it ON first then –>
    Click the “Run” button.
  9. The Java applet should load OK now. You may need to click on it to start it.
  10. When you are done using the Java applet, you should change the Java “Security Level” back to “High” if you had lowered it down to “Medium” earlier.
For Mac OS X:
  1. Click on the “Apple” menu in the upper-left corner of the screen –>
    “System Preferences…” –> “Java”.
  2. In the “Java Control Panel” window that appears –>
    Click the “Security” tab.
  3. If there is a “Exception Site List” section in this window:
    click on the “Edit Site List…” button –>
    Click the “Add” button –>
    Type in the web server location for the Java applet like “http://www.math.ucsd.edu/” –>
    Click the “OK” button –>
    Click the “OK” button.
  4. If there is no “Exception Site List” section in this window –>
    Slide the “Security Level” indicator from “High” down to “Medium” –>
    Click the “Apply” button –>
    Click the “OK” button.
  5. Close ALL of the open windows. You must completely QUIT the web browser or this workaround will fail.
  6. Re-launch the web browser.
  7. Go to the Java applet.
  8. When the “Security Warning” window asking “Do you want to run this application?” appears, if there is a “I accept the risk and want to run this app.” option, checkmark it ON first then –> Click the “Run” button.
  9. The Java applet should load OK now. You may need to click on it to start it.
  10. When you are done using the Java applet, you should change the Java “Security Level” back to “High” if you had lowered it down to “Medium” earlier.

Find my iPad – how to use

If you have lost or misplaced your iPad, here’s how to use “Find my iPad” to figure out where it is.

This only works if

  • you have correctly setup your AppleID on your iPad
  • Turned Find my iPad ON in Settings–>iCloud
  • Followed these instructions on some settings
  • AND it is on and near a wi-fi network

1. Open a web browser and surf over to www.iCloud.com – OR you can use the “Find My iPhone” app if someone has installed it on their device.

2. Login with your MDS AppleID and password.

ICLOUD LOGIN
Click for a larger version.

 

ICLOUD APP ICONS
Click for a larger version

3. Click FIND MY IPAD.

At the top there is a pulldown menu where you can select a particular device. Once you do the system will try to locate your device.

Click for a bigger version
Click for a bigger version

Notice you can also have the device make a sound [it sounds like a sci-fi submarine, and is quite loud], and mark it as lost. Please do not Erase the Device if you are using an MDS iPad.

In general the screen will tell you where the iPad is within about 50 feet if it is on campus.