title: connection of computer at different places
body: <p>How can a connection be established b/w client computers and master computer and master computer should be connected through internet to my computer?
  I want to conduct an online quiz in school in a manner such that all the computers at school are connected through localserver to master computer and master computer through internet to my computer to control the unwanted access. so,if it is possible how it can be done. or is there any book or something available regarding this stuff?</p>