<cheap-N-nasty> Here (IIRC) is how I turn a machine into a serial-port server: stty 115200 raw </dev/ttyS1 socket -l -s 4444 </dev/ttyS1 >/dev/ttyS1 2>&1 ...after which anybody who telnets to port 4444 on that machine is automatically connected to /dev/ttyS1. </cheap-N-nasty>