[Qt-interest] block and unblock internet

[Dave Feustel]

On Mon, May 25, 2009 at 10:35:21PM +0530, Rahulkumar Tibdewal wrote:
> Hi All,
> 
> I want to block and unblock internet on my client machine.
> Only internet should get blocked not intranet.
> 
> Internet block should be irrespective of browser.
> 
> Any ideas???
> 
> Thanks
> Rahul

ifconfig (gateway device) down/up

However, this is not nearly as secure as many might think.