What do you mean by "just harassing?" if you mean wont leave you alone and threatening you and/or stalking yes you can if you feel your life is in danger then of course
Both.Added; A restrainig order is issued against a specific named person - however - the order can restrain that individual from going near a certain address.
Go to the office of the Clerk of the Court and inquire about that particular individual by name. Records of court proceedings are public records and they should be able to answer your question.