I appoligize if this was already posted. I know you guy and girls get fruestrated with questions like this. I tryed searching but haven't mastered that yet. My question is: How do I hook up two cpu's together to learn more about Computer security. I have two CPU running XP and want to simulate a internet connection with out going on line. Basicly I want to be able to scan each ones port and check vulnerbilities(without A internet connection).I also want to run current exploits to learn how they work.Plus I want to be able to use the ftp,telnet,smtp,fingerand other daemons. I guess I'm not sure were to start.....should I network them together or is their another way. Can this be done with just the telephone jack or only with a network card and cable. All info would be appreciated......THANKS