Preferable, restricted tokens are used to implement the location based discrimination by restricting {HEAD ~ the access} of users connecting from {TAIL ~ less trusted locations} 
connecting from
Preferable , restricted tokens are used to implement the location based discrimination by restricting { HEAD ~ the access } of users connecting from { TAIL ~ less trusted locations }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL