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