Systems and methods are provided for controlling {HEAD ~ access} via {TAIL ~ a computer network} to a subscriber server 
via
Systems and methods are provided for controlling { HEAD ~ access } via { TAIL ~ a computer network } to a subscriber server
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH