Ursula is the systems administrator for GateTime Enterprises, a clock manufacturing company in Atlanta. Ursula is in charge of all network equipment as well as network security. Ursula has recently created a set of IT security policies which include an acceptable use policy that all employees must sign. Ursula wants to install software on a proxy server that will monitor all user Internet traffic, enable her to administer Internet policy settings in one place, and prev ent avoidance of the new acceptable use policy. What kind of proxy server doesUrsula want to implement?