Embodiments of the invention provide {TAIL ~ a functional architecture} having {HEAD ~ a control unit} inside the firewall, and a proxy server outside the firewall 
Embodiments of the invention provide { TAIL ~ a functional architecture } having { HEAD ~ a control unit } inside the firewall , and a proxy server outside the firewall
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH