No, loading realport on a server does not mean that realport controls all ports. Realport controls that port if that device is opened (getty, sleep, a print job is printing, etc.). Examples to better illustrate this: I have realport devices ttya01-16. Ports 1-14 are terminals auto-connecting via telnet to my host, ports 15-16 are printers. In this case you would not use ports ttya01-14 and setup the printers using ttya15-16. If there is a process running on the port from your server, Realport will have control of this port and essentially 'own it' until the process is gone.