RasTracker for Windows NT - Version 2.1 A software product that enables you to set and monitor the usage of your RAS ports on your Windows NT RAS servers. RasTracker offers complete control of how your RAS ports are used. If you are an ISP (Internet Service Provider) a must-have feature of RasTracker is the ability to deny users to be logged on more than once concurrently, preventing your customers from handing out their passwords to friends which leads to maybe three or four users being logged on with the same account.