UI for our Raspberry Pi R/C Car Driver


Working on the UI for our R/C Car driver program:

CGI on Raspberry Pi

You can run cgi-bin Bash scripts pretty much out of the box after you've installed apache2:

sudo apt-get install apache2

Your default index.html is located here:


Put your hello.cgi bash scripts in: /usr/lib/cgi-bin:

cd /usr/lib/cgi-bin
sudo vi hello.cgi

echo "Content-type: text/html"
echo ""
echo "<HTML><HEAD></HEAD><BODY><h1>Hello World</h1></BODY></HTML>"

Checking CRL's with CertUtil


You can download and view CRL's with Microsoft's CertUtil tool, it's built into Windows 7, and you can invoke it with:

certutil -URL


certutil -URL http://fpkia.gsa.gov/CommonPolicy/CommonPolicy(1).crl

How to Prevent Excessive Paging/Thrashing & 100% CPU Utilization in VirtualBox

No Paging
Execution Cap

You can prevent excessive paging/thrashing - in VirtuaBox by changing your swap to none within the O/S (Windows 2008 in my case). Right click My Computer > Properties > Advanced System Settings > Advanced. Then under Performance, click Settings. Click the Advanced tab, click Change. Click No paging file, click Set. Click OK > OK > OK.

To prevent 100% CPU utilization on your host, turn your VM off, then change your VM's settings under System > Processor > Execution cap, from 100% to 50%.

My WordPress Blog Hacked :-(

Hacked 1

My WordPress blog was just hacked, and I had WP-Security plugin installed. So, trying Drupal (I attempted to install Joomla, but MochaHost doesn't have a modern version of PHP).

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