title: Code to enable/disable internet connectivity
body: <p>I need to write some code to trigger internet connectivity on a computer. By default,internet should not work.</p>
  
  <p>But,after installing my program,internet should work.</p>
  
  <p>Ofcourse the computers are connected to my server and normally access internet through DHCP right now. But,give me some ideas to make things in such a way that only installing my program enables internet connectivity.</p>
  
  <p>Thanks</p>